The average weight of 21 boys was recorded as 64kg. If the weight of the teacher was added, the average increased by one kg. What was the teacher's weight?

The average weight of 21 boys was recorded as 64kg. If the weight of t

1.	The average weight of 21 boys was recorded as 64kg. If the weight of the teacher was added, the average increased by one kg. What was the teacher's weight?
A.	86kg
B.	64kg
C.	72 kg
D.	98 kg
E.	None of the above
Answer» B. 64kg

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The average weight of 21 boys was recorded as 64kg. If the weight of the teacher was added, the average increased by one kg. What was the teacher's weight?

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