- #1
sjaguar13
- 49
- 0
You are taking a test with 10 questions, you only have to answer 7, how many ways are there to do it?
10 x 9 x 8 x 7 x 6 x 5 x 4 ?
How many different ways are there to answer the questions if you must answer at least 3 from the first 5 questions?
5 x 4 x 3 x 7 x 6 x 5 x 4 ?
10 x 9 x 8 x 7 x 6 x 5 x 4 ?
How many different ways are there to answer the questions if you must answer at least 3 from the first 5 questions?
5 x 4 x 3 x 7 x 6 x 5 x 4 ?