If the average of 8,6,14,7 and x is 11, then the value of x is:

Correct option is B

Given:

Number given are 8,6,14,7 and x

Average =11

Formula Used:

$$Average =\frac{Sum\ of\ observations}{Number\ of \ observations}$$​

Sum of numbers : 8 +6 +14 +7 +x = 35+x

Average =$$\frac{35+x}{5} =11$$​​

35+x =55

x= 55-35 =20