When a new person replaces a man weighing 67 kg, the average weight of the 9 people increases by 3.5 kg. What is the weight of the new person?
Show answer & explanation
Correct answer: C
Explanation
Given:
Weight of the outgoing person = 67 kg
Increase in average = 3.5 kg
Number of persons = 9
According to the formula:
Increase in total weight = Increase in average × Number of persons
Total increase = 3.5 × 9 = 31.5 kg
Weight of the new person = 67 + 31.5 = 98.5 kg