Q425
In a class of 60 students, 40% are girls. The average weight of the boys is 62 kg and that of the girls is 55 kg. What is the average weight of the whole class?
A.
59.2 kg
AnswerB.
58.5 kg
C.
59 kg
D.
58.6 kg
Answer: Option A
Solution
Answer: Option A
Solution:
Total weight = 36 × 62 + 24 × 55 = 2232 + 1320 = 3552
Average = = 59.2 kg