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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?
Answer & Solution
Correct Answer:
Option
A

Total weight = 36 × 62 + 24 × 55 = 2232 + 1320 = 3552
Average = $$\frac{{3552}}{{60}}$$ = 59.2 kg
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