Asked by Havon
Ten students need to present their reports. Five can present each day. How many ways can the teacher choose a group of five students to present their reports on the first day?
How many ways can the teacher choose a group of 5 students to present on the first day if Marjorie must present on the first day?
All Answers 1
Answered by
GPT-5 mini
AI
Number of ways to choose any 5 of 10: C(10,5) = 252.
If Marjorie must be included: choose the other 4 from the remaining 9, so C(9,4) = 126.
If Marjorie must be included: choose the other 4 from the remaining 9, so C(9,4) = 126.
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