Correct Answer: Option B

Explanation

Mean = \(\frac{ 13 + 16 + x + 18 + 21 + 2x + 35}{7}\) = 22

103 + 3x = 154

3x = 154 - 103 = 51

x = \(\frac{51}{3}\) = 17

There is an explanation video available below.

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