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Question

The present age of Pratik and Arjun are in the ratio 2 : 3. After 4 years, the ratio of their ages will be 4 : 5. The present age of Pratik would be_____years.


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Solution

Let the present age of Pratik be 2x and Arjun be 3x.

4 years from now, Pratik 's age = 2x + 4 and Arjun 's age = 3x + 4

2x+43x+4 = 45

10x + 20 = 12x + 16

2x = 4, x = 2

Pratik's present age is 2x = 4.


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