Question 61

Ages of P and Q are 50 and 40 respectively. How long ago was the ratio of their ages 3 : 2?

Solution

Let say , x years ago their age ratio was 3:2.

So,

$$\frac{50-x}{40-x}=\frac{3}{2}.$$

or,$$100-2x=120-3x.$$

or,$$3x-2x=120-100.$$

or,x=20.

D is correct choice.

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