Suppose you have 6 good friends at work You won a free dinne

Suppose you have 6 good friends at work. You won a free dinner for 4 at one of the nicer nearby restaurants. How many possible choices do you have for selecting the 3 good friends to take to dinner with you?

Question 5 Multiple Choice Options 02 04 015 20 120

Solution

The order in which you select the good friends do not matter, so we use combinations.

Hence, there are

6C3 = 6!/(3!3!) = 20 ways [ANSWER]