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1. The average age of 15 people is 25 years. Out of them, total age of 2 people is 115 years. What is the average age of the other 13 people?
- A. 20 years
- B. 20 years
- C. 20 years
- D. 20 years
Answer: Option A
Explanation:
Total age of 15 people = 15 x 25 = 375 years
Total age of 2 people = 115 years
Total age of the other 13 people = 275 - 115 = 160
So, the average age of the other 13 people = 160/13 = 20 years
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