A water tank has steps inside it. A monkey is sitting on the top most step. (ie, the first step) The water level is at the ninth step.
(a) He jumps 3 steps down and then jumps back 2 step up. In how many jumps will he reach the water level?
(b) After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step?
Write a pair of integers whose:
sum is −3