Question

The arithmetic mean of 4, 5, 8, 7, x and 6 is 7. Find the value of x.​

Answer 1

Answer:

Mean = sum of no. / total no.

so,

4+5+8+7+x+6 / 6 = 7

30+x / 6 = 7

30+x = 7 ×6

30+x = 42

x = 42-30

x= 12