Question
The present age of βPβ is 40 years, which is 33.33%
more than that of βQβ. The average of present ages of βQβ and βRβ is 45 years. The ratio of present ages of βRβ and βSβ is 5:8. Find the difference in present ages of βPβ and βSβ.Solution
ATQ, Present age of βQβ = 40 / (4/3) = 30 years Present age of βRβ = (2 Γ 45) β 30 = 90 β 30 = 60 years Present age of βSβ = 60 Γ (8/5) = 96 years Required difference = 96 β 40 = 56 years
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