jomel_taneca
New member
- Joined
- Jan 27, 2014
- Messages
- 6
I'm in a freshmen student and we are in a combinations topic.
please check if my answer is correct..!
" a student must answer 3 out of 5 essay questions on a test. In how many different ways can the student select the questions ? "
5C3 = 5 ! / ( 5 - 3 ) ! 3 !
= 5! / 2! ( 3 ! )
= 10 ways
please check if my answer is correct..!
" a student must answer 3 out of 5 essay questions on a test. In how many different ways can the student select the questions ? "
5C3 = 5 ! / ( 5 - 3 ) ! 3 !
= 5! / 2! ( 3 ! )
= 10 ways
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