If the arithmetic mean of 7 5 13 x and 9…

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If the arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is :

  1. A. 10
  2. B. 12
  3. C. 14
  4. D. 16

Answer: Option D

Here is complete explanation of If the arithmetic mean of 7 5 13 x and 9….

Solution(By ExamCraze Team)

Arithmetic mean
$$frac{{{text{Total sum}}}}{{{text{Total number}}}}$$
According to the question,
⇒ 10 = $$frac{7 + 5 + 13 + x + 9}{5}$$
⇒ 50 = x + 34
⇒ x = 50 - 34
⇒ x = 16

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