Medium
The average weight of 3 men is increased by 4 kg, when one of them whose weight is 100 kg is replaced by another. What is the weight of the newly added man?
Explanation
Explanation
Total increase in weight of the group = 3 x 4 kg = 12 kg. So the new man's weight = old man's weight (100 kg) + total increase (12 kg) = 112 kg.
PRO TIP
Re-check your working by substituting the answer back into the original question.