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I am three times as old as my son. After 10 years hence, I will be twice as old as my son. The sum of our ages is1). 40 years2). 60 years3). 84 years4). 72 years |
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Answer» ⇒ Let the age of son be x ⇒ after 10 years father will be twice as old as son ⇒ Father age = 3x + 10 ⇒ Son age = x + 10 ⇒ 3x + 10 = 2(x + 10) ⇒ 3x + 10 = 2X + 20 ⇒ x = 10 ⇒ SUM of their ages = x + 3x ⇒ Sum of their ages = 10 + 30 ∴ Sum of their ages = 40 |
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