A box contains 20 balls with random numbers and having an average of 34. When one ball is drawn at random from the box, the average of the remaining balls is reduced to 31. What was the number on the ball drawn out from the box?

A box contains 20 balls with random numbers and having an average of 3

1.	A box contains 20 balls with random numbers and having an average of 34. When one ball is drawn at random from the box, the average of the remaining balls is reduced to 31. What was the number on the ball drawn out from the box?
A.	19
B.	33
C.	57
D.	74
E.	91
Answer» F.

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A box contains 20 balls with random numbers and having an average of 34. When one ball is drawn at random from the box, the average of the remaining balls is reduced to 31. What was the number on the ball drawn out from the box?

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