Question

The arithmetic mean of 8 and x is 20 find the value of the x

Answer 1

Answer →

value of x is 32 .

Solution →

Given that :-

Arithmetic mean of 8 and x is 20 .

To find :-

Value of x

Now we know that formula for arithmetic mean is :-

$\frac{sum \: of \: all \: numbers}{total \: observations \: }$

Here Sum = 8 + x

Total observation = 2

Mean →

$= > 20 \: = \frac{8 + x}{2}$

$= > 40 = 8 + x$

$= > 32 = x$

Hence value of x is 32

hope it helps

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Answer 2

Answer:

(8 + x)/2 = 20

8 + x=40

x = 40-8=32

x = 32. Ans