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The ratio of father’s age to his son’s age is 8 : 5. The product of their age is 1440. The ratio of their ages after 6 years will be1). 2 : 12). 3 : 23). 11 : 64). 13 : 9 |
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Answer» Given, ratio of father’s age to his SON’s age is 8 : 5. Let their ages be 8x and 5x respectively. Given, PRODUCT of their age is 1440. ∴ 8x × 5x = 1440 ⇒ x2 = 36 ⇒ x = 6 Father’s present age = 8 × 6 = 48 Son’s present age = 5 × 6 = 30 Ratio of their ages after 6 years $(= \frac{{48 + 6}}{{30 + 6}} = \frac{{54}}{{36}} = 3\;:2\;)$ |
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