Multiple choice

5 years ago, the average age of P, Q and R was 25 years and 7 years ago, the average age of Q and R was 20 years. What is P's present age?

  1. 29 years

  2. 24 years

  3. 21 years

  4. 30 years

  5. None of these

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

5 years ago: (P+Q+R-15)÷3 = 25, so P+Q+R = 90. 7 years ago: (Q+R-14)÷2 = 20, so Q+R = 54. Then P = 90-54 = 36 (5 years ago). P's present age = 36+5 = 41. But 41 is not in options A-D. Answer E (None of these) is correct. The question tests understanding of age problems and checking all options.