Proportion word problems
Proportion word problems 1. Cost of 5 pens is $25 and cost of 10 pencils is $50. What is more expensive? Solution. Ratios of number of pens and pencils whose cost is $25 and $50 respectively, is […]
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Simple Interest Word Problems
Simple Interest Word Problems Example 1: What is the simple interest and amount of $ 2000 at the rate of 8% per year for 2 1/2 years. Solution: Principal amount = P = $ 2000 Rate of interest per year = R = 8% Time for which it is borrowed = T = 2 1/2 year Thus, simple […]
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Word Problems – Set Example 1: In a group of 60 people, 27 like tea, 42 likes coffee, and each person likes at least one of the two drinks. How many people like both coffee and tea. Solution: Let T denote the set of people who likes tea and C denote the set of people who likes coffee. […]
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