Find the mean of `x ,\ x+2,\ x+4,\ x+6,\ x+8`

If the mean of x+2,\ 2x+3,\ 3x+4,\ 4x+5 is x+2 , find x

If the mean of a set of observations x_1 , x_2 ________ x_10 is 20. Find the mean of x_1 + 4, x_2 + 8, x_3 + 12,_________ x_10 +40.

If the mean of x, x+2, x+4, x+6 and x+8 is 13, find x.

If the means of five observation x, x + 2, x + 4, x + 6, x + 8, is 11 then the mean of first three observation is

If the mean of five observations x , x + 2 , x + 4 , x + 6 , x + 8 is 11, find the mean of first three observations.

The mean of five observations x, x + 2, x + 4, x+6, x + 8 is m. What is the mean of the first three observations ?

If the mean of five observations x, x + 2, x + 4, x + 6, x + 8 is 11, then the mean of the first three observations is

If the mean of a set of observations x_(1), x_(2),….., ……, x_(10) " is " 20 . Find the mean of x_(1) + 4, x_(2) + 8, x_(3) + 12, …., ……, x_(10) + 40 .

The mean the five observations x,x + 2 , x + 4, x + 6, x + 8 is 11 Then, the mean of the first three observations is