Question
6 years ago from now, ratio of ages of βRβ and
βLβ was 5:7, respectively. If βLβ is 6 years elder to βRβ, then what will be the age of βLβ, 10 years hence from now?Solution
6 years ago from now, let ages of βRβ and βLβ be β5xβ years and β7xβ years, respectively. So, 7x β 5x = 6 Or, 2x = 6 Or, x = 3 Present age of βLβ = 7x + 6 = 7 Γ 3 + 6 = 27 years Age of βLβ, ten years hence from now = 27 + 10 = 37 years
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