Multiple choice

Average weight of 30 students in a class is increased by 200 grams when one student whose weight is 20 kg is replaced by new students. Find the weight of the new students admitted.

  1. 26 kg

  2. 20 kg

  3. 15 kg

  4. 30 kg

  5. 28 kg

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

Average increase of 200g for 30 students means total increase = 30 × 200g = 6000g = 6kg. New student's weight = 20kg + 6kg = 26kg.