2016
Mathematics
JAMB
If the mean of 4, y, 8 and 10 is 7. Find Y?
A.
6
B.
10
C.
7
D.
9
Correct Answer: 6
Explanation
(4+y+8+10)/4 = 7 22 + y = 4 x 7 22 + y = 28 y = 28 - 22 = 6
(4+y+8+10)/4 = 7 22 + y = 4 x 7 22 + y = 28 y = 28 - 22 = 6THIS WEEK's
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