Question

Please answer me urgently

If the mean of 12,14,x,40,32 is 28, find the value of x .

Answer 1

n=5
xm=28

sum x=98+x


so. xm=sum x/n

28=98+x/5
140=98+x
x=140-98
x=42

Answer 2

We know that

mean = Sum of observations/ no of observations.

: 12+14+x+40+32/5 =28
=> 26+x+72 = 140
=> x= 140- 98
=> x = 42