from a class of 10 students, 3 are to be chosen for a competition. In how many ways can this be done?
Answers
Answered by
0
Answer:
120
Step-by-step explanation:
In this question, Combination is to be used NOT Permutation.
Combination is used whenever the order of your choices doesn't matter. Permutation is used when the arrangement/order of your choices matters.
In this case you need to choose 3 people out of 10, and it doesn't matter in what order you choose them.
So answer is 10C3 which is equal to 120.
Similar questions