Multiple choice

Average of the ages of Rakesh, Mahesh, Suresh and Ramesh three years ago was 32 years. Average of the present ages of Mahesh and Suresh is 36 years. Ramesh is 4 years older than Rakesh. Find the present age of Rakesh.

  1. 26

  2. 36

  3. 24

  4. 28

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

Let R, M, S, Rm be present ages. Three years ago: (R-3)+(M-3)+(S-3)+(Rm-3) = 4×32 = 128, so R+M+S+Rm = 140. Also M+S = 2×36 = 72. Then R+Rm = 140-72 = 68. Given Rm = R+4, so R+(R+4) = 68, 2R = 64, R = 32. But 32 isn't in options A-D, so E (None of these) is correct.

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