Question

if the mean of 7,9,x,13,6 is 8, find the value of x

Answer 1

(7+9+13+6+x)÷5 = 8
(35+x)÷5 = 8
35+x = 8×5
35+x = 40
× = 40-35
× = 5 ans.
hope it helps

Answer 2

x = 5

GIVEN

Data - 7,9,x,13,6

TO FIND

Value of x

SOLUTION

The above problem can be simply solved as follows;

Formula to calculate mean -

Mean = Sum of all data/Number of data

Putting the values

$8 = \frac{7 + 9 + x + 13 + 6}{5}$

$8 = \frac{35 + x}{5}$

8 × 5 = 35 + x

40 = 35 + x

x = 40 - 35

x = 5

Hence, The answer is 5

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