Multiple choice

Age of Karim and Rahim are in the ratio 3 : 1. If the sum of their ages is 84 then their ages are

  1. 36 yrs, 12 yrs

  2. 24 yrs, 10 yrs

  3. 63 yrs, 21 yrs

  4. 60 yrs, 20 yrs

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let the ages be 3x and x. The sum is 3x + x = 4x = 84, so x = 21. The ages are 3(21) = 63 and 21.

AI explanation

Let the ages of Karim and Rahim be 3x and 1x. The sum of their ages is 4x, which equals 84. Dividing 84 by 4 gives x = 21. Their ages are 3x and x, which are 63 years and 21 years.