Multiple choice general knowledge math & puzzles

After replacing an old man by a new man,average of five members team of a club is same as it was 3 years ago. What is the difference between the age of the replaced one and the new member:

  1. 4

  2. 10

  3. 8

  4. 15
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

For 5 team members, if 4 aged 3 years (total +12), the new member must be 15 years younger than the old member to keep the average the same as 3 years ago (compensating for all 5 members aging 3 years = 15 years total).

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