The average of six numbers is x and the average of three of these is y. If the average of the remaining three is z, then-

A. x = y + z B. 2x = y + z C. x = 2y + 2z D. None of these Answer: Option B
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Solution(By Apex Team)

$\begin{array}{l}\text{ Clearly, we have : }\\ \Rightarrow x=\left(\large\frac{3y+3z}{6}\right)\\ \Rightarrow2x=y+z\end{array}$

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