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he present ages of Chetna and Shikha are in the ratio of 5:7 respectively. After 7 years, their ages will be in the ratio of 11:14 respectively. What is the difference between their ages? |
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Answer» CHETNA : Shikha = 5:7 5x 7X After 7 years, Ratio = 11:14 (5x+7)/(7x+7) = 11/14 Cross Multiplication, 70x + 98 = 77X +77 7x = 21 x= 3 Present age of Chetna = 5x = 5*3 = 15 years Present age of Shikha = 7x = 7*3 = 21 years Difference between ages = 21 - 15 = 6 Years |
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