Question

If the mean of (2×-1),3,4 and 8 is (×+1) ,then find the value of ×​

Answer 1

Answer:

$x = 5$

Step-by-step explanation:

We know that mean of the given data is

$\frac{summation \: of \: observations}{no. \: of \: observations}$

therefore,

$\frac{(2x - 1) + 3 + 4 + 8}{4} = x + 1$

on solving the equation,

we got,

$x = 5$