The Group Leader of a group of 6 students reported that their average weight is 46 kg. When the members of the group were asked about their individual weights, 5 of them answered: 50 kg, 52 kg, 40 kg, 44 kg, 48 kg. The 6th member said, “I can’t recall my weight”. What is his weight?
Answer & explanation
Correct answer: option 4
Total weight of 6 students = 6 × 46 = 276 kg
Sum of weight of 5 students = 50 + 52 + 40 + 44 + 48 = 234 kg
Weight of 6th students = 276 - 234 = 42 kg