119k views
5 votes
Determine the number of different groups of 4 questions a teacher could select from a set of 10 distinct questions.

1 Answer

2 votes

\displaystyle \binom{10}{4}=(10!)/(4!6!)=(7\cdot8\cdot9\cdot10)/(2\cdot3\cdot4)=7\cdot3\cdot10=210
User Marco Schoolenberg
by
7.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories