Question

the work done in carrying a body from A to B is 20j and from B to C is 15j. the work done in moving the body from A to C assuming the force involved in all the three cases is conservative force is

Answer 1

Work done is conservative. So it will not depend on path.
So work done in moving it from A to C is 20+15 =35J

Answer 2

So total work has doNe A To C
$20j + 15j = 35j$
So dear MAte ,

$35j$
is your correct answer .