Multiple choice

The average weight of 8 persons increases by 3.5 kg when a person weight of 65 kg is replaced by a new person, what could be the weight of new person?

  1. 83 kg.

  2. 86 kg.

  3. 93 kg.

  4. 95 kg.

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

When the average weight of 8 persons increases by 3.5 kg, the total weight increases by 8 × 3.5 = 28 kg. Since a person weighing 65 kg is replaced, the new person must weigh 65 + 28 = 93 kg. The image likely shows a group of people, but the calculation can be done without it.