Multiple choice

The average weight of 8 persons is increased by 3.5 kg when one of them whose weight is 46kg is replaced by a new man. The weight of the new man is.

  1. 76kg

  2. 72kg

  3. 74kg

  4. 66kg

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When one person is replaced, the total weight increases by average increase × number of people = 3.5 × 8 = 28 kg. New man's weight = 46 + 28 = 74 kg. Option C is correct.