Question

5 years ago from now, the ratio of age of 'A' and 'B'

Q: Answer-5 years ago from now, the ratio of age of 'A' and 'B' was 9:5, respectively and 5 years hence from n...

5 years ago from now, let the ages of A and B be 9x years and 5x years, respectively. Therefore, 5 years hence from now, age of A 9x 5 5 9x 10 years ATQ, 9x 105x 10 117 Or, 63x 70 55x 110 Or, 8x 40 So, x 5 So, age of A, 5 years ago from now 9x 9 X 5 45 years And, age of B, 5 years ago from now 5x 5 X 5 25 years So, Present age of A 45 5 50 years And, Present age of B 25 5 30 years Required sum 50 30 80 years Alternate Solution Ratio of ages of A and B 5 years ago from now 95 And, Ratio of ages of A and B 5 years hence from now 117 Since, the difference between age of A, 5 years ago and 5 years hence from now is 10 years Therefore, 11 - 9 2 units 10 years

was 9:5, respectively and 5 years hence from now, the ratio of their ages will become 11:7. Find the sum of their present ages.

A 84 years

B 100 years

C 80 years

D 70 years

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