2022
Mathematics
JAMB
Find x if the mean of 2x, 4x, 2x - 13 and 6x is 4.
A.
1.5
B.
2.0
C.
1.0
D.
0.5
Correct Answer: 2.0
Explanation
mean (4) = 2x+4x+2x−13+6x/4 16 = 14x - 13 16 + 13 = 14x x = 29/14 or 2.07
mean (4) = 2x+4x+2x−13+6x/4 16 = 14x - 13 16 + 13 = 14x x = 29/14 or 2.07THIS WEEK's
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