Multiple choice

Mohit is 20 years younger than his father. Three years ago, Mohit's age was one-sixth the age of his father. Find the present age of Mohit.

  1. 7 years

  2. 6 years

  3. 8 years

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

Let Mohit's age be M and father's be F. F = M + 20. Three years ago: M-3 = (1/6)(F-3). Substituting F: M-3 = (1/6)(M+20-3) => 6M - 18 = M + 17 => 5M = 35 => M = 7.

AI explanation

Let Mohit's present age be x, so his father's present age is x plus 20. Three years ago, Mohit was x minus 3 and his father was x plus 17. Using the given ratio, x minus 3 equals one-sixth of x plus 17, so 6x minus 18 equals x plus 17. Solving this equation gives 5x equals 35, meaning x equals 7. Mohit's present age is 7 years.

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