Question

the mean of 10,12,16,20,x and 26 is 17

Answer 1

HEY MATE HERE IS YOUR ANSWER


$\frac{10 + 12 + 16 + 20 + x + 26 + }{6} = 17$
$\frac{84 + x}{6} = 17 \\ 84 + x = 102 \\ x = 102 - 84 \\ x = 18$
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Answer 2

$\bf\huge\boxed{X = 18}$
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$\bf\underline{Given}$ - mean of 10,12,16,20,26,X is 17.

$\bf\underline{To\: Find}$- Value of x

$\bf\underline{Formula\: Used}$

Mean = $\frac{Sum \:of\: Observations}{Number \:of\: Observations}$

$\bf\underline{Solution}$ -

$\frac{10 + 12 + 16 + 20 + 26 + x}{6} = 17 \\ \\ = > \frac{84 + x}{6} = 17 \\ \\ = > 84 + x = 17 \times 6 \\ \\ = > 84 + x = 102 \\ \\ => x = 102 - 84 \\ \\ \bf{x = 18}$