Basic Word Problems With Solution

Here are a few basic word problems along with detailed solutions:

These problems cover basic arithmetic operations such as addition, subtraction, multiplication, and division, providing practical examples for better understanding.

Problem 1: Simple Addition
Problem: Sarah has 5 apples. She buys 3 more apples. How many apples does she have now?

Solution:

Initial apples = 5
Apples bought = 3
Total apples = Initial apples + Apples bought
Total apples = 5 + 3 = 8
Sarah has 8 apples.

Problem 2: Simple Subtraction
Problem: James had 12 cookies. He ate 4 of them. How many cookies does he have left?

Solution:

Initial cookies = 12
Cookies eaten = 4
Remaining cookies = Initial cookies – Cookies eaten
Remaining cookies = 12 – 4 = 8
James has 8 cookies left.

Problem 3: Multiplication
Problem: There are 7 boxes, and each box contains 5 books. How many books are there in total?

Solution:

Number of boxes = 7
Books per box = 5
Total books = Number of boxes × Books per box
Total books = 7 × 5 = 35
There are 35 books in total.

Problem 4: Division
Problem: A baker has 24 cupcakes and wants to distribute them equally among 6 children. How many cupcakes will each child get?

Solution:

Total cupcakes = 24
Number of children = 6
Cupcakes per child = Total cupcakes ÷ Number of children
Cupcakes per child = 24 ÷ 6 = 4
Each child will get 4 cupcakes.

Problem 5: Combining Operations
Problem: Alex has 20 marbles. He buys 10 more marbles and then gives 8 marbles to his friend. How many marbles does he have now?

Solution:

Initial marbles = 20
Marbles bought = 10
Marbles given away = 8
Total marbles after buying more = Initial marbles + Marbles bought
Total marbles after buying more = 20 + 10 = 30
Remaining marbles after giving some away = Total marbles after buying more – Marbles given away
Remaining marbles = 30 – 8 = 22
Alex has 22 marbles now.

Problem 6: Simple Time Calculation
Problem: A movie starts at 4:00 PM and lasts for 2 hours and 30 minutes. What time does the movie end?

Solution:

Start time = 4:00 PM
Duration of movie = 2 hours and 30 minutes
End time = Start time + Duration of movie
End time = 4:00 PM + 2 hours 30 minutes = 6:30 PM
The movie ends at 6:30 PM.

Problem 7: Simple Area Calculation
Problem: A rectangular garden has a length of 8 meters and a width of 6 meters. What is the area of the garden?

Solution:

Length of the garden = 8 meters
Width of the garden = 6 meters
Area of the garden = Length × Width
Area of the garden = 8 × 6 = 48 square meters
The area of the garden is 48 square meters.

Problem 8: Simple Division and Multiplication
Problem: There are 18 apples, and they need to be packed equally into 3 baskets. How many apples will each basket contain?

Solution:

Total apples = 18
Number of baskets = 3
Apples per basket = Total apples ÷ Number of baskets
Apples per basket = 18 ÷ 3 = 6
Each basket will contain 6 apples.

Problem 9: Simple Addition
Problem: Mark has 8 crayons. His friend gives him 6 more crayons. How many crayons does Mark have now?

Solution:

Initial crayons = 8
Crayons received = 6
Total crayons = Initial crayons + Crayons received
Total crayons = 8 + 6 = 14
Mark has 14 crayons.

Problem 10: Simple Subtraction
Problem: Julia had 12 books. She gave 4 books to her cousin. How many books does she have left?

Solution:

Initial books = 12
Books given away = 4
Remaining books = Initial books – Books given away
Remaining books = 12 – 4 = 8
Julia has 8 books left.

Problem 11: Multiplication
Problem: There are 5 shelves, and each shelf holds 7 books. How many books are there in total?

Solution:

Number of shelves = 5
Books per shelf = 7
Total books = Number of shelves × Books per shelf
Total books = 5 × 7 = 35
There are 35 books in total.

Problem12 : Division
Problem: A pizza is cut into 16 slices. If 4 friends share the pizza equally, how many slices does each friend get?

Solution:

Total slices = 16
Number of friends = 4
Slices per friend = Total slices ÷ Number of friends
Slices per friend = 16 ÷ 4 = 4
Each friend gets 4 slices of pizza.

Problem 13: Combining Operations
Problem: Emily has 30 candies. She buys 15 more candies and then gives 20 candies to her friends. How many candies does she have now?

Solution:

Initial candies = 30
Candies bought = 15
Candies given away = 20
Total candies after buying more = Initial candies + Candies bought
Total candies after buying more = 30 + 15 = 45
Remaining candies after giving some away = Total candies after buying more – Candies given away
Remaining candies = 45 – 20 = 25
Emily has 25 candies now.

Problem 14: Simple Time Calculation
Problem: A cooking class starts at 2:30 PM and lasts for 1 hour and 20 minutes. What time does the class end?

Solution:

Start time = 2:30 PM
Duration of class = 1 hour and 20 minutes
End time = Start time + Duration of class
End time = 2:30 PM + 1 hour 20 minutes = 3:50 PM
The cooking class ends at 3:50 PM.

Problem 15: Simple Area Calculation
Problem: A rectangular swimming pool has a length of 20 meters and a width of 10 meters. What is the area of the swimming pool?

Solution:

Length of the swimming pool = 20 meters
Width of the swimming pool = 10 meters
Area of the swimming pool = Length × Width
Area of the swimming pool = 20 × 10 = 200 square meters
The area of the swimming pool is 200 square meters.

Problem 16: Simple Division and Multiplication
Problem: There are 30 cupcakes, and they need to be packed equally into 5 boxes. How many cupcakes will each box contain?

Solution:

Total cupcakes = 30
Number of boxes = 5
Cupcakes per box = Total cupcakes ÷ Number of boxes
Cupcakes per box = 30 ÷ 5 = 6
Each box will contain 6 cupcakes.

Problem17 : Simple Addition
Problem: Lisa has 3 dolls. She buys 5 more dolls. How many dolls does she have now?

Solution:

Initial dolls = 3
Dolls bought = 5
Total dolls = Initial dolls + Dolls bought
Total dolls = 3 + 5 = 8
Lisa has 8 dolls.

Problem 18: Simple Subtraction
Problem: Peter had 20 balloons. He gave 8 balloons to his friends. How many balloons does he have left?

Solution:

Initial balloons = 20
Balloons given away = 8
Remaining balloons = Initial balloons – Balloons given away
Remaining balloons = 20 – 8 = 12
Peter has 12 balloons left.

Problem 19: Multiplication
Problem: There are 5 packets, each containing 7 candies. How many candies are there in total?

Solution:

Number of packets = 5
Candies per packet = 7
Total candies = Number of packets × Candies per packet
Total candies = 5 × 7 = 35
There are 35 candies in total.

Problem 20: Division
Problem: A cake is cut into 12 slices. If 4 friends share the cake equally, how many slices does each friend get?

Solution:

Total slices = 12
Number of friends = 4
Slices per friend = Total slices ÷ Number of friends
Slices per friend = 12 ÷ 4 = 3
Each friend gets 3 slices of cake.

Problem 21: Combining Operations
Problem: John has 25 pencils. He buys 10 more pencils and then gives 12 pencils to his classmates. How many pencils does he have now?

Solution:

Initial pencils = 25
Pencils bought = 10
Pencils given away = 12
Total pencils after buying more = Initial pencils + Pencils bought
Total pencils after buying more = 25 + 10 = 35
Remaining pencils after giving some away = Total pencils after buying more – Pencils given away
Remaining pencils = 35 – 12 = 23
John has 23 pencils now.

Problem 22: Simple Time Calculation
Problem: A school assembly starts at 9:00 AM and lasts for 1 hour and 45 minutes. What time does the assembly end?

Solution:

Start time = 9:00 AM
Duration of assembly = 1 hour and 45 minutes
End time = Start time + Duration of assembly
End time = 9:00 AM + 1 hour 45 minutes = 10:45 AM
The assembly ends at 10:45 AM.

Problem 23: Simple Area Calculation
Problem: A rectangular garden has a length of 15 meters and a width of 10 meters. What is the area of the garden?

Solution:

Length of the garden = 15 meters
Width of the garden = 10 meters
Area of the garden = Length × Width
Area of the garden = 15 × 10 = 150 square meters
The area of the garden is 150 square meters.

Problem 24: Simple Division and Multiplication
Problem: There are 24 cookies, and they need to be packed into 6 boxes equally. How many cookies will each box contain?

Solution:

Total cookies = 24
Number of boxes = 6
Cookies per box = Total cookies ÷ Number of boxes
Cookies per box = 24 ÷ 6 = 4
Each box will contain 4 cookies.

Problem 25: Simple Addition
Problem: Ben has 6 toy cars. He receives 4 more toy cars for his birthday. How many toy cars does he have now?

Solution:

Initial toy cars = 6
Toy cars received = 4
Total toy cars = Initial toy cars + Toy cars received
Total toy cars = 6 + 4 = 10
Ben has 10 toy cars.

Problem 26: Simple Subtraction
Problem: Sarah had 18 candies. She gave 7 candies to her friend. How many candies does she have left?

Solution:

Initial candies = 18
Candies given away = 7
Remaining candies = Initial candies – Candies given away
Remaining candies = 18 – 7 = 11
Sarah has 11 candies left.

Problem 27: Multiplication
Problem: There are 4 baskets, and each basket contains 5 apples. How many apples are there in total?

Solution:

Number of baskets = 4
Apples per basket = 5
Total apples = Number of baskets × Apples per basket
Total apples = 4 × 5 = 20
There are 20 apples in total.

Problem 28: Division
Problem: A pizza is cut into 8 slices. If there are 4 friends and they share the pizza equally, how many slices does each friend get?

Solution:

Total slices = 8
Number of friends = 4
Slices per friend = Total slices ÷ Number of friends
Slices per friend = 8 ÷ 4 = 2
Each friend gets 2 slices of pizza.

Problem 29: Combining Operations
Problem: Tom has 14 marbles. He wins 6 more marbles in a game and then gives 5 marbles to his brother. How many marbles does he have now?

Solution:

Initial marbles = 14
Marbles won = 6
Marbles given away = 5
Total marbles after winning more = Initial marbles + Marbles won
Total marbles after winning more = 14 + 6 = 20
Remaining marbles after giving some away = Total marbles after winning more – Marbles given away
Remaining marbles = 20 – 5 = 15
Tom has 15 marbles now.

Problem 30: Simple Time Calculation
Problem: A movie lasts for 2 hours and 15 minutes. If the movie starts at 3:00 PM, what time will it end?

Solution:

Start time = 3:00 PM
Duration of movie = 2 hours and 15 minutes
End time = Start time + Duration of movie
End time = 3:00 PM + 2 hours 15 minutes = 5:15 PM
The movie will end at 5:15 PM.

Problem 31: Simple Area Calculation
Problem: A rectangular room has a length of 9 meters and a width of 4 meters. What is the area of the room?

Solution:

Length of the room = 9 meters
Width of the room = 4 meters
Area of the room = Length × Width
Area of the room = 9 × 4 = 36 square meters
The area of the room is 36 square meters.

Problem 32: Simple Division and Multiplication
Problem: There are 20 apples, and they are to be packed equally into 5 boxes. How many apples will each box contain?

Solution:

Total apples = 20
Number of boxes = 5
Apples per box = Total apples ÷ Number of boxes
Apples per box = 20 ÷ 5 = 4
Each box will contain 4 apples.

Problem 33: Simple Addition
Problem: Anna has 7 apples. She buys 5 more apples. How many apples does she have in total?

Solution:

Initial apples = 7
Apples bought = 5
Total apples = Initial apples + Apples bought
Total apples = 7 + 5 = 12
Anna has 12 apples in total.

Problem 34: Simple Subtraction
Problem: James had 15 chocolates. He gave 6 chocolates to his friend. How many chocolates does he have now?

Solution:

Initial chocolates = 15
Chocolates given away = 6
Remaining chocolates = Initial chocolates – Chocolates given away
Remaining chocolates = 15 – 6 = 9
James has 9 chocolates left.

Problem 35: Multiplication
Problem: There are 3 baskets, each containing 8 oranges. How many oranges are there in total?

Solution:

Number of baskets = 3
Oranges per basket = 8
Total oranges = Number of baskets × Oranges per basket
Total oranges = 3 × 8 = 24
There are 24 oranges in total.

Problem 36: Division
Problem: A teacher has 40 markers and wants to distribute them equally among 8 students. How many markers will each student get?

Solution:

Total markers = 40
Number of students = 8
Markers per student = Total markers ÷ Number of students
Markers per student = 40 ÷ 8 = 5
Each student will get 5 markers.

Problem 37: Combining Operations
Problem: Rachel has 20 candies. She buys 10 more candies and then gives 8 candies to her friend. How many candies does she have now?

Solution:

Initial candies = 20
Candies bought = 10
Candies given away = 8
Total candies after buying more = Initial candies + Candies bought
Total candies after buying more = 20 + 10 = 30
Remaining candies after giving some away = Total candies after buying more – Candies given away
Remaining candies = 30 – 8 = 22
Rachel has 22 candies now.

Problem38: Division

Problem: Sarah has 12 apples. She wants to share them equally among her 3 friends. How many apples will each friend get?

Solution:

To find out how many apples each friend will get, we need to divide the total number of apples by the number of friends.

Number of apples Sarah has = 12
Number of friends = 3

Each friend will get 12/3 = 4 apples.

Problem 39: Simple Time Calculation
Problem: A train journey lasts for 3 hours and 15 minutes. If the train departs at 1:30 PM, what time will it arrive at its destination?

Solution:

Departure time = 1:30 PM
Duration of journey = 3 hours 15 minutes
Arrival time = Departure time + Duration of journey
Arrival time = 1:30 PM + 3 hours 15 minutes = 4:45 PM
The train will arrive at 4:45 PM.

Problem 40: Simple Area Calculation
Problem: A rectangular playground has a length of 12 meters and a width of 5 meters. What is its area?

Solution:

Length of the playground = 12 meters
Width of the playground = 5 meters
Area of the playground = Length × Width
Area of the playground = 12 × 5 = 60 square meters
The area of the playground is 60 square meters.

Problem 41: Simple Division and Multiplication
Problem: A pizza is cut into 10 equal slices. If 2 friends share the pizza equally, how many slices does each friend get?

Solution:

Total slices = 10
Number of friends = 2
Slices per friend = Total slices ÷ Number of friends
Slices per friend = 10 ÷ 2 = 5
Each friend gets 5 slices of pizza.

Problem 42: Simple Addition

Problem: Alice has 5 red balloons. She gets 3 more blue balloons. How many balloons does she have in total?

Solution:

• Initial red balloons = 5
• Additional blue balloons = 3
• Total balloons = Initial red balloons + Additional blue balloons
• Total balloons = 5 + 3 = 8

Alice has 8 balloons in total.

Problem 43: Simple Subtraction

Problem: Tom had 20 marbles. He lost 7 of them while playing. How many marbles does he have now?

Solution:

• Initial marbles = 20
• Marbles lost = 7
• Remaining marbles = Initial marbles – Marbles lost
• Remaining marbles = 20 – 7 = 13

Tom has 13 marbles left.

Problem 44: Multiplication

Problem: There are 4 packets, each containing 6 candies. How many candies are there in total?

Solution:

• Number of packets = 4
• Candies per packet = 6
• Total candies = Number of packets × Candies per packet
• Total candies = 4 × 6 = 24

There are 24 candies in total.

Problem 45: Division

Problem: A farmer has 30 apples and wants to distribute them equally among 5 baskets. How many apples will each basket contain?

Solution:

• Total apples = 30
• Number of baskets = 5
• Apples per basket = Total apples ÷ Number of baskets
• Apples per basket = 30 ÷ 5 = 6

Each basket will contain 6 apples.

Problem 46: Combining Operations

Problem: Lily has 12 notebooks. She buys 8 more notebooks and then gives 5 to her friend. How many notebooks does she have now?

Solution:

• Initial notebooks = 12
• Notebooks bought = 8
• Notebooks given away = 5
• Total notebooks after buying more = Initial notebooks + Notebooks bought
• Total notebooks after buying more = 12 + 8 = 20
• Remaining notebooks after giving some away = Total notebooks after buying more – Notebooks given away
• Remaining notebooks = 20 – 5 = 15

Lily has 15 notebooks now.

Problem 47: Simple Time Calculation

Problem: A concert lasts for 2 hours and 30 minutes. If it starts at 7:00 PM, what time will it end?

Solution:

• Start time = 7:00 PM
• Duration of concert = 2 hours and 30 minutes
• End time = Start time + Duration of concert
• End time = 7:00 PM + 2 hours 30 minutes = 9:30 PM

The concert will end at 9:30 PM.

Problem 48: Simple Area Calculation

Problem: A rectangular garden has a length of 10 meters and a width of 6 meters. What is its area?

Solution:

• Length of the garden = 10 meters
• Width of the garden = 6 meters
• Area of the garden = Length × Width
• Area of the garden = 10 × 6 = 60 square meters

The area of the garden is 60 square meters.

Problem 49: Simple Division and Multiplication

Problem: A pizza is cut into 8 equal slices. If 4 friends share the pizza equally, how many slices does each friend get?

Solution:

• Total slices = 8
• Number of friends = 4
• Slices per friend = Total slices ÷ Number of friends
• Slices per friend = 8 ÷ 4 = 2

Each friend gets 2 slices of pizza.

Problem 50: Simple Addition

Problem: Emma has 4 pencils. Her friend gives her 3 more pencils. How many pencils does Emma have in total?

Solution:

• Initial number of pencils = 4
• Pencils received = 3
• Total number of pencils = Initial pencils + Pencils received
• Total number of pencils = 4 + 3 = 7

Emma has 7 pencils in total.

Problem 51: Simple Subtraction

Problem: Mike had 15 cookies. He ate 5 of them. How many cookies does he have left?

Solution:

• Initial number of cookies = 15
• Cookies eaten = 5
• Remaining cookies = Initial cookies – Cookies eaten
• Remaining cookies = 15 – 5 = 10

Mike has 10 cookies left.

Problem 52: Multiplication

Problem: There are 6 boxes, and each box contains 4 books. How many books are there in total?

Solution:

• Number of boxes = 6
• Books per box = 4
• Total books = Number of boxes × Books per box
• Total books = 6 × 4 = 24

There are 24 books in total.

Problem 53: Division

Problem: A teacher has 24 markers and wants to distribute them equally among 8 students. How many markers will each student get?

Solution:

• Total markers = 24
• Number of students = 8
• Markers per student = Total markers ÷ Number of students
• Markers per student = 24 ÷ 8 = 3

Each student will get 3 markers.

Problem 54: Combining Operations

Problem: John has 10 toy cars. He buys 5 more toy cars and then gives 4 to his brother. How many toy cars does John have now?

Solution:

• Initial toy cars = 10
• Toy cars bought = 5
• Toy cars given away = 4
• Total toy cars after buying more = Initial toy cars + Toy cars bought
• Total toy cars after buying more = 10 + 5 = 15
• Remaining toy cars after giving some away = Total toy cars after buying more – Toy cars given away
• Remaining toy cars = 15 – 4 = 11

John has 11 toy cars now.

Problem 55: Simple Time Calculation

Problem: A TV show lasts for 1 hour and 45 minutes. If it starts at 3:00 PM, what time will it end?

Solution:

• Start time = 3:00 PM
• Duration of TV show = 1 hour and 45 minutes
• End time = Start time + Duration of TV show
• End time = 3:00 PM + 1 hour 45 minutes = 4:45 PM

The TV show will end at 4:45 PM.

Problem 56: Simple Area Calculation

Problem: A garden is in the shape of a rectangle with a length of 8 meters and a width of 5 meters. What is the area of the garden?

Solution:

• Length of the garden = 8 meters
• Width of the garden = 5 meters
• Area of the garden = Length × Width
• Area of the garden = 8 × 5 = 40 square meters

The area of the garden is 40 square meters.

Problem 57: Simple Addition

Problem: Tim has 8 marbles. He finds 7 more marbles in his room. How many marbles does he have now?

Solution:

• Initial number of marbles = 8
• Marbles found = 7
• Total number of marbles = Initial marbles + Marbles found
• Total number of marbles = 8 + 7 = 15

Tim has 15 marbles.

Problem 58: Simple Subtraction

Problem: Lisa had 20 stickers. She gave 8 stickers to her friend. How many stickers does she have now?

Solution:

• Initial number of stickers = 20
• Stickers given away = 8
• Remaining stickers = Initial stickers – Stickers given away
• Remaining stickers = 20 – 8 = 12

Lisa has 12 stickers.

Problem 59: Multiplication

Problem: There are 5 baskets, each containing 9 apples. How many apples are there in total?

Solution:

• Number of baskets = 5
• Apples per basket = 9
• Total apples = Number of baskets × Apples per basket
• Total apples = 5 × 9 = 45

There are 45 apples in total.

Problem 60: Division

Problem: A box contains 36 candies. If 6 friends share the candies equally, how many candies will each friend get?

Solution:

• Total candies = 36
• Number of friends = 6
• Candies per friend = Total candies ÷ Number of friends
• Candies per friend = 36 ÷ 6 = 6

Each friend will get 6 candies.

Problem 61: Combining Operations

Problem: Jack has 18 pencils. He buys 5 more pencils and then gives 7 pencils to his classmate. How many pencils does he have now?

Solution:

• Initial pencils = 18
• Pencils bought = 5
• Pencils given away = 7
• Total pencils after buying more = Initial pencils + Pencils bought
• Total pencils after buying more = 18 + 5 = 23
• Remaining pencils after giving some away = Total pencils after buying more – Pencils given away
• Remaining pencils = 23 – 7 = 16

Jack has 16 pencils now.

Problem 62: Simple Time Calculation

Problem: A movie lasts for 2 hours and 30 minutes. If it starts at 6:00 PM, what time will it end?

Solution:

• Start time = 6:00 PM
• Duration of movie = 2 hours and 30 minutes
• End time = Start time + Duration of movie
• End time = 6:00 PM + 2 hours 30 minutes = 8:30 PM

The movie will end at 8:30 PM.

Problem 63: Simple Area Calculation

Problem: A rectangle has a length of 7 meters and a width of 4 meters. What is its area?

Solution:

• Length of the rectangle = 7 meters
• Width of the rectangle = 4 meters
• Area of the rectangle = Length × Width
• Area of the rectangle = 7 × 4 = 28 square meters

The area of the rectangle is 28 square meters.

Problem 64: Simple Addition
Problem: Sarah has 5 apples. She buys 3 more apples. How many apples does she have now?

Solution:

Initial number of apples = 5
Apples bought = 3
Total number of apples = Initial apples + Apples bought
Total number of apples = 5 + 3 = 8
Sarah has 8 apples.

Problem 65: Simple Subtraction
Problem: John had 12 candies. He gave 5 candies to his friend. How many candies does he have now?

Solution:

Initial number of candies = 12
Candies given away = 5
Remaining candies = Initial candies – Candies given away
Remaining candies = 12 – 5 = 7
John has 7 candies.

Problem 66: Multiplication
Problem: There are 4 bags, each containing 7 oranges. How many oranges are there in total?

Solution:

Number of bags = 4
Oranges per bag = 7
Total oranges = Number of bags × Oranges per bag
Total oranges = 4 × 7 = 28
There are 28 oranges in total.

Problem 67: Division
Problem: A farmer has 20 apples and wants to distribute them equally among 4 baskets. How many apples will each basket contain?

Solution:

Total apples = 20
Number of baskets = 4
Apples per basket = Total apples ÷ Number of baskets
Apples per basket = 20 ÷ 4 = 5
Each basket will contain 5 apples.

Problem 68: Combining Operations
Problem: Emma has 15 books. She bought 4 more books and then gave 6 books to her friend. How many books does she have now?

Solution:

Initial books = 15
Books bought = 4
Books given away = 6
Total books after buying more = Initial books + Books bought
Total books after buying more = 15 + 4 = 19
Remaining books after giving some away = Total books after buying more – Books given away
Remaining books = 19 – 6 = 13
Emma has 13 books now.

Problem 69: Word Problem with a Twist
Problem: A car travels at a speed of 60 km/h. How far will it travel in 2.5 hours?

Solution:

Speed of the car = 60 km/h
Time traveled = 2.5 hours
Distance traveled = Speed × Time
Distance traveled = 60 km/h × 2.5 hours = 150 km
The car will travel 150 km in 2.5 hours.

Problem 70: Fraction Problem
Problem: Lily had 3/4 of a chocolate bar. She gave 1/2 of it to her brother. How much of the chocolate bar does she have left?

Solution:

Initial chocolate bar = 3/4
Chocolate given away = 1/2 of 3/4 = (1/2) × (3/4) = 3/8
Remaining chocolate = Initial chocolate bar – Chocolate given away
Remaining chocolate = 3/4 – 3/8
Convert 3/4 to an equivalent fraction with a denominator of 8:

3/4 = 6/8
Remaining chocolate = 6/8 – 3/8 = 3/8
Lily has 3/8 of the chocolate bar left.

Problem 71: Sarah has 3 apples. She buys 4 more apples from the store. How many apples does she have now?

Solution: To find out how many apples Sarah has now, you simply add the number of apples she initially had to the number of apples she bought.

Initial apples = 3 Bought apples = 4

Total apples = Initial apples + Bought apples Total apples = 3 + 4 Total apples = 7

So, Sarah has 7 apples now.

Problem72: John is twice as old as his brother. If the sum of their ages is 36, how old is each of them?

Solution: Let John’s age be J and his brother’s age be B.

From the problem, we have two pieces of information:

1. John is twice as old as his brother: J=2B
2. J = 2B
3. The sum of their ages is 36: J+B=36

We can substitute the first equation into the second:

2B+B=36

3B=36

B=36/3

B =12

So, John’s brother is 12 years old. Now we find John’s age:

J=2B

J = 2×12

=24

John is 24 years old.

Problem73: If 5 pencils cost $2.50, how much would 8 pencils cost?

Solution: First, find the cost of one pencil:

Cost of one pencil = Total cost / Number of pencils Cost of one pencil = $2.50 / 5 Cost of one pencil = $0.50

Now, find the cost of 8 pencils:

Cost of 8 pencils = Cost of one pencil × Number of pencils

Cost of 8 pencils = $0.50 × 8

Cost of 8 pencils = $4.00

So, 8 pencils would cost $4.00.

Problem74: Lisa got 80% on her math test, which had a total of 50 questions. How many questions did she answer correctly?

Solution: To find out how many questions Lisa answered correctly, you need to calculate 80% of the total number of questions.

Number of questions answered correctly = Total questions × (Percentage / 100)

Number of questions answered correctly = 50 × (80 / 100)

Number of questions answered correctly = 50 × 0.80

Number of questions answered correctly = 40

So, Lisa answered 40 questions correctly.

Problem75: A car travels at a speed of 60 miles per hour. How far will it travel in 3 hours?

Solution: To find the distance traveled, use the formula:

Distance = Speed × Time

Distance = 60 miles/hour × 3 hours Distance = 180 miles

So, the car will travel 180 miles in 3 hours.

Problem76: Sarah is saving money to buy a bicycle that costs $180. She already has $45 saved. If she saves $15 each week, how many more weeks does she need to save to buy the bicycle?

Solution:

Determine the remaining amount Sarah needs to save:

Total cost of the bicycle: $180
Amount Sarah has already saved: $45
Remaining amount needed: $180−$45=$135
Calculate the number of weeks needed to save the remaining amount:

Amount saved per week: $15
Number of weeks needed: $135/9
=9 weeks

Sarah needs to save for 9 more weeks to buy the bicycle.

Problem 77: Jason’s Books

Jason has 12 books. He buys 8 more books. How many books does Jason have now?

Solution:

Initial number of books: 12
Books bought: 8
Total books: 12+8=20
Jason has 20 books now.

Problem 78: Baker’s Cookies

A baker made 50 cookies. She sold 30 cookies. How many cookies does she have left?

Solution:

Cookies made: 50
Cookies sold: 30
Cookies left:
50−30=20
The baker has 20 cookies left.

Problem 79: Fruit Baskets

There are 6 baskets, each containing 5 apples. How many apples are there in total?

Solution:

Number of baskets: 6
Apples per basket: 5
Total apples: 6×5= 30

There are 30 apples in total.

Problem 80: Marathon Training

Emma runs 3 miles every day. How many miles does she run in a week?

Solution:

Miles per day: 3
Days in a week: 7
Total miles: 3×7=21
Emma runs 21 miles in a week.

Problem 81: Classroom Desks

There are 5 rows of desks in a classroom. Each row has 4 desks. How many desks are there in the classroom?

Solution:

Rows of desks: 5

Desks per row: 4

Total desks: 5×4=20

There are 20 desks in the classroom