If the mean of n observation 12, 22, 32, _______ n2 is \(\dfrac{46n}{11}\), then n is equal to:

If the mean of n observation 12, 22, 32, _______ n2 is \(\dfrac{46n}{1

1.	If the mean of n observation 12, 22, 32, _______ n2 is \(\dfrac{46n}{11}\), then n is equal to:
A.	22
B.	23
C.	11
D.	12
Answer» D. 12