The tennis team is creating one doubles team to play at its matches. There are 13 people on the tennis team. How many different ways can the two people on the doubles team be chosen?

As only one team is to be made that means we have to choose 2 people from total 13 people. As the order that two people are selected does not matter here so we just have to make all possible combination of the team So the answer is 13*12/2 answer = 78 ways