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Average age of three boys is 22 years. If the ratio of their ages is 6 : 9 : 7, then the age of the youngest boy is1). 8 years2). 9 years3). 18 years4). 16 years |
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Answer» Given, Average age of three BOYS = 22 Total Age of three boys = 66 YEARS Let the ages of three boys is 6a, 9A and 7a respectively. Then, ⇒ 6a + 9a + 7a = 66 ⇒ 22a = 66 ⇒ a = 3 ∴ Age of YOUNGEST boy = 3 × 6 = 18 years. |
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