Find x if the mean of 2x, 4x, 2x -13 and 6x is 4.
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
Correct Answer: Option B
Explanation:
mean (4) =\(\frac{2x + 4x +2x -13 +6x}{4}\)
16 = 14x -13
16 + 13 = 14x
x = 29/14 or 2.07
mean (4) =\(\frac{2x + 4x +2x -13 +6x}{4}\)
16 = 14x -13
16 + 13 = 14x
x = 29/14 or 2.07