Question

Write the value of $x$ for which $2x,x+10$ and $3x+2$ are in $A.P$

Answer 1

Given $2x,x+10$ and $3x+2$ are in A.P.

Then we'll have,

$2(x+10)=2x+3x+2$

or, $2x+20=5x+2$

or, $3x=18$

or, $x=6$.