A student was asked to find the arithmetic mean of the following 12 numbers : 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and y He found the mean to be 12. The value of y will be :

A student was asked to find the arithmetic mean of the following 12 nu

1.	A student was asked to find the arithmetic mean of the following 12 numbers : 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and y He found the mean to be 12. The value of y will be :
A.	3
B.	7
C.	17
D.	31
Answer» C. 17

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A student was asked to find the arithmetic mean of the following 12 numbers : 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and y He found the mean to be 12. The value of y will be :

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A student was asked to find the arithmetic mean of the following 12 numbers :
3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and y
He found the mean to be 12. The value of y will be :