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The present ages of Pooja and Rehan are in the ratio 2 : 3. Four years later the ratio will be 5 : 7. What is Pooja's present age (in years)?

Competition practiceRatio, Proportion & Mixtures

A16
B24
C12
D20

Step-by-Step Solution

Let the ages be

2 x

and

3 x . (2 x + 4) / (3 x + 4) = 5/7

gives

14 x + 28 = 15 x + 20

, so

x = 8

and Pooja is 16.

Answer: A) 16

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