Question
The present ages of a father and son are in the ratioÂ
7 : 2 . After 6 years , the father’s age will be 3 times  the son’s age. What is the father’s present age?Solution
Let present ages be 7x and 2x After 6 years: 7x + 6 = 3(2x + 6) 7x + 6 = 6x + 18 x = 12 Father’s present age = 7x = 84 years
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 No matter how far you stand from a mirror, your image appears erect. The mirror is likely to beÂ
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