There are 50 students in a class. One of them weighing 50 kg goes away and a new student joins. By this the average weight of the class increases by 1/2 kg. The weight of the new student is :

There are 50 students in a class. One of them weighing 50 kg goes away

1.	There are 50 students in a class. One of them weighing 50 kg goes away and a new student joins. By this the average weight of the class increases by 1/2 kg. The weight of the new student is :
A.	70 kg
B.	72 kg
C.	75 kg
D.	76 kg
Answer» D. 76 kg

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There are 50 students in a class. One of them weighing 50 kg goes away and a new student joins. By this the average weight of the class increases by 1/2 kg. The weight of the new student is :

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