Question

the present ages of a and b are 42 and 36 years, respectively. after k years, the ratio of ages of b to a will be 15:17. what is value of k?

Answer 1

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Answer 2

A's present age = 42 years

B's present age = 36 years

After k years:

A's age = (42+k)years

B's age = (36+k)years

Also given: B's age after k years/A's age after k years = 15/17

36+k/42+k = 15/17

On solving you get k = 9.