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The mean of the numbers 0, x + 2, 3x + 6, and 4x +...

Mathematics
JAMB 2025

The mean of the numbers 0, x + 2, 3x + 6, and 4x + 8 is 4, find the value of x.

  • A. \(\frac{2}{5}\)
  • B. \(\frac{2}{9}\)
  • C. 0
  • D. 4
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Correct Answer: Option C
Explanation

Mean = \(\frac{(0 + x + 2 + 3x + 6 + 4x + 8)}{4}\) = 4.

Simplify numerator: 8x + 16.

So \(\frac{(8x + 16)}{4}\) = 4.

8x + 16 = 16.

8x = 0.

x = 0.

There is an explanation video available below.


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Explanation Video

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