The average weight of a class of 40 students is 40 kg. If the weight of the teacher be included , the average weight increases by 500 gm . The weight of the teacher is ?

The average weight of a class of 40 students is 40 kg. If the weight o

1.	The average weight of a class of 40 students is 40 kg. If the weight of the teacher be included , the average weight increases by 500 gm . The weight of the teacher is ?
A.	40.5 kg
B.	60 kg
C.	60.5 kg
D.	62 kg
Answer» D. 62 kg

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