The average weight of 20 students in a class is increased by 0.75 kg when one st

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The average weight of 20 students in a class is increased by 0.75 kg when one student of 35 kg replaced by a new student. Weight of the new student (in kg) is :

Options:

A . 35

B . 40

C . 45

D . 50

Answer: Option D

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