If the mean of 13, 17, 18, 20, x and 9. Is 16 find the value of x.

1.	If the mean of 13, 17, 18, 20, x and 9. Is 16 find the value of x.
A.	16
B.	18
C.	19
D.	20
E.	None of these
Answer» D. 20

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If the mean of 13, 17, 18, 20, x and 9. Is 16 find the value of x.

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