Multiple choice

The ratio between present age of Mohan and Sohan is 21 : 23 and 7 years before Sohan was 8 years older than Mohan find the present age of Sohan?

  1. 23

  2. 92

  3. 84

  4. 21

  5. Can not be determined
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let present ages be 21x and 23x. Seven years ago: (23x-7) = (21x-7) + 8. Solving: 23x-7 = 21x-7+8, so 23x-7 = 21x+1, which gives 2x = 8, so x = 4. Sohan's present age = 23x = 23×4 = 92 years.

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