Question
The ratio of age of βBβ after 6 years from now and
age of βCβ 4 years ago from now is 7:4, respectively. The present age of βCβ is 40% of the present age of βAβ. If present age of βAβ is 50 years then find the present age of βBβ.Solution
Present age of βCβ = 0.4 Γ 50 = 20 years 4 years ago from now, age of βCβ = 20 β 4 = 16 years 6 years hence from now, age of βBβ = 16 Γ (7/4) = 28 years Present age of βBβ = 28 β 6 = 22 years
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