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The average weight of 8 men increases by 2 kg when one of the men who weighs 60 kg is replaced by a new man. What is the weight of the new man?

1. 74 kg
2. 76 kg
3. 78 kg
4. 72 kg

Correct answer: 76 kg

Solution

If the average weight of 8 men increases by 2 kg, the total weight increases by 8 × 2 = 16 kg. Since one 60 kg man is replaced, the new man's weight must be 60 + 16 = 76 kg.

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