Multiple choice

The age of Sahil is 4 times that of his son. Five years ago, his age was 7 times that of his son. What is Sahil's present age?

  1. 55 years

  2. 40 years

  3. 65 years

  4. 45 years

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let son's age be x, Sahil's be 4x. 5 years ago: 4x-5 = 7(x-5). 4x-5 = 7x-35. 3x = 30, x = 10. Sahil's age = 4x = 40.

AI explanation

Let the son's present age be x years, which makes Sahil's present age 4x years. Five years ago, their ages were x minus 5 and 4x minus 5, giving the equation 4x minus 5 equals 7 times x minus 5. Solving 4x minus 5 equals 7x minus 35 yields 3x equals 30, so x is 10. Sahil's present age is 4 times 10, which is 40 years.

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