Averages · Question 13 · Hard
Averages question 13
The average weight of 10 people increases by 1.5 kg when one of them, weighing 62 kg, is replaced by a new person. What is the weight of the new person?
- 74 kg
- 75 kg
- 77 kg
- 80 kg
Answer and explanation
Answer: C. 77 kg
Explanation: The total increases by 10 × 1.5 = 15 kg, so the new person weighs 62 + 15 = 77 kg.
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