Statisticshard · Past Paper
The average weight of 8 persons is increased by 2.5 kg when a new person comes in place of one of them weighing 65 kg. The weight of the new person is:
A85 kg
B75 kg
C80 kg
D70 kg
✓ Correct Answer: A — 85 kg
Total increase = 8 * 2.5 = 20 kg. Weight of new person = 65 + 20 = 85 kg.
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