Question

Find the arithmetic mean of 25,30,32,x,43 is 34.Then find the value of x.

Answer 1

A.M = SUM OF NUMBER/TOTAL NUMBER
34 = 25 + 30 + 32+ x + 43/5

34 = 130 + x / 5
34 × 5 = 130 + x
170 = 130 + x
x = 170- 130
x = 40