Answer:
(a) 
 towards the right
 towards the right
(b) The green team wins
Step-by-step explanation:
Given


Solving (a): The net force
Because the force in the opposite directions, the net force is the subtraction of the smaller force from the bigger one.
So, we have:

Substitute values for Blue and Green


Solving (b): Who wins the round
The body will move toward the Green Team because the force larger 

So, the green team will win