The average weight of a family of five members (in kg) whose weights are 40 kg, 49 kg, 56 kg, 71 kg and 39 kg is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 51.
Total weight = 40 + 49 + 56 + 71 + 39 = 255
Average = 255 ÷ 5 = 51 kg