Q. 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 X He found the mean to be 12. The value of X will be: - Study24x7
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3636 followers study24x7 01 Jan 1970 05:30 AM study24x7 study24x7

Q. 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 X He found the mean to be 12. The value of X will be:

A

3

B

7

C

17

D

31

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  • pooja
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    Reply 01 Jan 1970 05:30 AM

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