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The average weight of 8 persons increases by 2.5 kg when a person weighing 65 kg is replaced by a new person. The weight of the new person…

2053Medium DSSSB TGT Computer Science 0 replies 1 views
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The average weight of 8 persons increases by 2.5 kg when a person weighing 65 kg is replaced by a new person. The weight of the new person is

  • A75 kg
  • B80 kg
  • C85 kg
  • D90 kg
Correct answer: C

Explanation

The total weight rises by 8 × 2.5 = 20 kg, so the new person weighs 65 + 20 = 85 kg.
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