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 ?

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

1.	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 ?
A.	5 kg.
B.	7.9 kg.
C.	9.9 kg.
D.	0.1 kg.
Answer» D. 0.1 kg.

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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 ?

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