Class
6
th
7
th
8
th
9
th
10
th
11
th
12
th
Close
Permutations and Combinations
1) How many combinations of students are possible if the group is to consist of exactly 3 freshmen and 3 sophomores?
500
560
590
540
1/10
Solution
Answer:
560
Explanation:
This second part of the problem is similar to the first except that the choice of the second group of 3 comes only from the sophomores.
Again we want 3 freshmen and 3 sophomores so we multiply the number of groups of freshmen times the number of groups of sophomores.
5C₃ × 8C₃
= 560
Take a break!
You have watched Screen for 30 minutes, please relax your eyes by watching any other object at 20 feet for 20 secs.
