Question

If the sum of 4 consecutive terms of an AP is 36,then arithmetic mean of this terms in the AP is

Answer 1

Answer: 9

Step-by-step explanation:

Let the first term be 'x'.

x + (x+1) + (x+2) + (x+3) =  36

4x = 36 - 6

x = 30/4 = 7.5

The arithmetic mean = (7.5 + 8.5 + 9.5 + 10.5) /(4)

                                     = 36/4 = 9