Question

The average weight of 25 students of section A of 35 students of section B is 54 kg. Find the average weight of 60 students of this class

Answer 1

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Answer:

Total weight of 25 students =25 × 35 = 875kg

Total weight of 26 persons with teacher = 26 × 35.4 = 920.4kg

∴ Weight of teacher =( 920.4 − 875 )kg = 45.4kg.

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