Question

If 20.X+1.4Are In Ap Then Value Of X

Answer 1

Answer:

20,x+1,4

d=a2-a1=x+1-20=x-19

Answer 2

SOLUTION:-

20 ,X+1,4 are in ap

let 20 =a1

》X+1=a2

》4=a3

a2-a1=a3-a2 (common differences are same )

》X+1-20= 4-(X+1)

》X-19=4-X-1

》X-1=3-X

》2x=4

》X=4/2

》X=2 Answer