Question
If the ratio of the ages of Karan and Saroj is 5 : 7. 8
years ago, the ratio of their ages was 2 : 3. Find the present age of Saroj?Solution
Let the present age of Karan be 5x and that of Saroj be 7x. As per the question, (5x-8)/(7x-8) = 2/3 ⇒ 3(5x-8) = 2 (7x-8) ⇒ 15 x - 24 = 14x - 16 ⇒ 15x - 14x = 24 - 16 Solving for x, we get x = 8. ∴ Present age of Saroj is 8 × 7 = 56 years.
Fill the correct option for blank space 23.
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