Multiple choice

Mr. Sohanlal is four times as old as his son. Four years later, the sum of their ages will be 43 years. The present age of the son is

  1. 5 years

  2. 7 years

  3. 8 years

  4. 10 years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let son's age be x, then father's age is 4x. Four years later, (x+4) + (4x+4) = 43. 5x + 8 = 43, 5x = 35, x = 7.

AI explanation

Let the son's present age be x, which makes Sohanlal's present age 4x. Four years later, the sum of their ages is (x + 4) + (4x + 4) = 5x + 8. Setting this equal to 43 gives 5x = 35, so x = 7. The present age of the son is 7 years.

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