Question
The ratio of age of ‘B’ after 3 years from now and
age of ‘C’ 8 years ago from now is 7:4, respectively. The present age of ‘C’ is 30% of the present age of ‘A’. If present age of ‘A’ is 40 years then find the present age of ‘B’.Solution
Present age of ‘C’ = 0.3 × 40 = 12 years 8 years ago from now, age of ‘C’ = 12 – 8 = 4 years 3 years hence from now, age of ‘B’ = 4 × (7/4) = 7 years Present age of ‘B’ = 7 – 3 = 4 years
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