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1. If the ratio of the ages of Maya and Chhaya is 6 : 5 at present, and fifteen years from now, the ratio will get changed to 9 : 8, then find Maya's present age.

A. 24 years

B. 30 years

C. 18 years

D. 33 years

Solution:

Let Maya's and Chhaya's present age is 6x and 5x respectively
And,

\frac{6 x + 15}{5 x + 15} = \frac{9}{8}

Or, 48x + 120 = 45x = 135
Or, 3x = 15
Or, x = 5
Present age of Maya = 6x = 30

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