If the mean of 4, y, 8 and 10 is 7. Find Y?
-
A.
6 -
B.
10 -
C.
7 -
D.
9
Correct Answer: Option A
Explanation
(frac{4 + y + 8 + 10}{4}) = 7
22 + y = 4 x 7
22 + y = 28
y = 28 – 22 = 6
There is an explanation video available below.
(frac{4 + y + 8 + 10}{4}) = 7
22 + y = 4 x 7
22 + y = 28
y = 28 – 22 = 6
There is an explanation video available below.