Question

Write the value of x for which 2x, x + 10, 3x + 2 are in
a.p.

Answer 1

Here if they are in a.p then
(x+10)-2x=3x+2-(x+10)
or,-x+10=3x+2-x-10
-x+x-3x=2-10-10
or, -3x=-18
or, x=6 (ans)

Answer 2

hope it will help you