After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago.What is the difference between the ages of the replaced and the new member?
Options:
A .  2 years
B .  4 years
C .  8 years
D .  15 years
Answer: Option D
Age decreased=(5 x 3)years 15 years So,required difference=15years.
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