Question

find X if mean of 30, X+4, 14, 35, X+2, 13, 32 and 10 is 24.​

Answer 1

${\bigstar}$SOLUTION${\bigstar}$

➠Arithmetic mean = $\frac{sum \: of \: all \: observations}{total \: no \: of \: observations}$

➠$\frac{30 + (x + 4) + 14 + 35 + (x + 2) + 13 + 32 + 10}{8} = 24$

➠2x + 48 + 45 + 47 = 24 × 8

➠2x + 140 = 192

➠2x = 192-140

➠2x = 52

➠x = $\frac{52}{2}$

➠$\boxed{\sf{ x = 26 }}$

Answer 2

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