If the mean of $x, x+3, x+6, x+9, x+12$ is 10, then x i... – Statistics

Statisticsmedium · Past Paper

If the mean of $x, x+3, x+6, x+9, x+12$ is 10, then x is:

✓ Correct Answer: A — 4

Mean is the middle term $x+6$ for an AP. $x+6=10 \Rightarrow x=4$.

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