Multiple choice

The average weight of 8 students and 1 class teacher is increased by 3 kg when 1 person of 68 kg weight is replaced by a new person. Then find the weight of the new person?

  1. 76 kg

  2. 82 kg

  3. 86 kg

  4. 95 kg

  5. 100 kg

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

When one person replaces another, average increases by 3 kg for 9 people. Total increase = 9 × 3 = 27 kg. New person's weight = 68 + 27 = 95 kg.