The average weight of 10 persons is increased by 3.5 kg, when one of them whose weight is 45.5 kg is replaced by a new man. The weight (in kg) of the new man is ___.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 80.5.
Total weight increase = 10 × 3.5 = 35 kg
New man's weight = 45.5 + 35 = 80.5 kg