The average weight of 10 woman is incraesed by 1 kg if 2 woman of 42 kg and 38 kg are replaced by 2 men.Find the average weight of both the men?

46 kg
45kg
42 kg
44 kg

Correct Answer: 45kg

Explanation:

Total weight of 2 men
= 1 x 10 + (42 + 38) = 10 + 80 = 90 kg
∴ Average weight of 2 men = 90/2 = 45 kg

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