Question

If the mean of x, X + 2, X+ 4, X+6 and x + 8 is 11, then x= ?
(A) 5
(B) 7
(C) 6
(D) 9​

Answer 1

Answer:

Hii mate....

Step-by-step explanation:

Given ; Mean = 11

Total no. of observations = 5

Sum of observations = x + x+2 + x+4 + x+6 + x+8

= 5x+20

Mean =

$\frac{sum \: of \: observations}{total \: no. \: of \: observations}$

=

$\frac{5x + 20}{5}$

11 x 5 = 5x + 20

55 = 5x + 20

5x = 55 - 20

5x = 35

x = 35/5

x = 7

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Answer 2

Hlo mate

c) 7 is correct