Multiple choice

The present age of Ravi's father is four times Ravi's present age. Five years back, he was seven times as old as Ravi was at that time. What is the present age of Ravi's father?

  1. 84 years

  2. 70 years

  3. 40 years

  4. 35 years
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let Ravi's age be x, father be 4x. Five years ago: 4x - 5 = 7(x - 5). 4x - 5 = 7x - 35. 3x = 30, x = 10. Father's age = 4 * 10 = 40.

AI explanation

Let Ravi's present age be x years, making his father's present age 4x years. Five years ago, their ages were (x - 5) and (4x - 5), so we can write the equation 4x - 5 = 7(x - 5). Solving this yields 4x - 5 = 7x - 35, which simplifies to 3x = 30 and x = 10. Therefore, the present age of Ravi's father is 4 times 10, which is 40 years.

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