Register

How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet?

How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet?
asked 2.3k views
5 votes
How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet?

asked
User Zardosht
by
8.4k points

2 Answers

3 votes
60 ways because the easy way to solve this problem is identify the numbers being used and than multiply them by each other.
answered
User Ryan Mcguinn
by
7.6k points
3 votes
Slot method 20 options 3 slots First slot: 20 options Second slot: 19 options (one used up for 1st slot) Third slot: 18 (one less than last) Multiply them 20 times 19 times 18=6840 Answer is 6840 ways
answered
User RiccardoC
by
7.5k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Link Copied!