Question

if 4x,2x+20,6x+4 are in a.p then find x​

Answer 1

Answer:

x=6

Step-by-step explanation:

if 3 terms are in A.P then 2b = a+c

a=4x

b=2x+20

c=6x+4

2(2x+20)=4x+6x+4

4x+40=4x+6x+4

40=6x+4

6x=40-4

6x=36

x=36/6

x=6