Question

The mean of 3,7,8,10 and x is 6 find x​

Answer 1

x = 2

Explanation:

The mean is

3 + 7 + 8 + 10 + x

------------------------- = 6

5

Multiplying both sides by 5, we get:

3 + 7 + 8 + 10 + x = 30

Then 28 + x = 30, so that x must be 2

x = 2