Question

if X + 2, 2 x ,2 X + 4 are three consecutive terms of AP find the value of x

Answer 1

If the numbers are in AP

2(2x) = x + 2 + 2x + 4
4x = 3x + 6
x = 6

Answer 2

d = 2x - (x + 2)

= 2x - x - 2

= x - 2

d = 2x + 4 - 2x

= 4

x - 2 = 4

x = 4 + 2 = 6

6 is the answer.

And the AP is 8, 12, 16,...

Hope this may be helpful.