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2 years ago ratio of Sita and Prakash age was 5 : 8 respectively. After 4 years this ratio would become 2 : 3. Find the present age ( in years ) of Sita.

Solution

Correct Option: 3

Let Sita and Prakash ages 2 years ago be 5k5k and 8k8k. After 4 years (i.e., 6 years from 2 years ago): 5k+68k+6=23\frac{5k+6}{8k+6} = \frac{2}{3}. Solving: 15k+18=16k+1215k+18 = 16k+12, so k=6k = 6. Sita's present age =5(6)+2=32= 5(6)+2 = 32 years.

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