There are 50 students in a class. Their average weight is 45 kg. When one studen

Question

There are 50 students in a class. Their average weight is 45 kg. When one student leaves the class the average weight reduces by 100 g. What is the weight of the student who left the class ?

Options:

A . 45 kg.

B . 47.9 kg.

C . 49.9 kg.

D . 50.1 kg.

Answer: Option C

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