Question
The ratio of the current ages of βAβ and βBβ is
4:7, while the ratio of the current ages of βBβ and βCβ is 3:2. If the difference between the present ages of βBβ and βAβ is 18 years, determine the age of βCβ five years ago.Solution
ATQ,
Let the present age of βBβ be 7x years. So, the present age of βAβ = (4/7) Γ 7x = 4x years The present age of βCβ = (2/3) Γ 7x = (14x/3) years According to the given information: 7x - 4x = 18 β x = 6 So, present age of βCβ = (14/3) Γ 6 = 28 years Age of βCβ five years ago = 28 - 5 = 23 years
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