What should be added to 35 to make it equal to 1?
-13/7
-11/6
16/3
1
35 + some number to make it equal to 1
So, 35+ some number = 1
⇒Some number=1−35
=5−35=25
So, 25 must be added to 35 to make the resultant equal to 1.
What should be added to (12+13+15) to get 3?