Multiple choice

The average weight of 20 people is increased by 2.2 kg when one man of weight 53 kg is replaced by another man. Find the weight of the new man?

  1. 95 kg

  2. 93 kg

  3. 87 kg

  4. 97 kg

  5. None of these

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

When average of 20 people increases by 2.2 kg, total weight increases by 20×2.2 = 44 kg. Since one person (53 kg) is replaced, the new person's weight = 53+44 = 97 kg. The new man weighs 97 kg.