How many ways can 4 student ma be chosen from a class of 30 students is ?

asked Dec 19, 2018 223k views

5 votes

by Ning

8.6k points

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5 votes

If the order doesn't matter then you have to apply the combination formula:

³⁰C₄ = (30!)/(4!)(30-4)! = 27,405 WAYS

Jeffrey Simon answered Dec 21, 2018

8.2k points

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3 votes

That's we can solve by using a combination algorithm:
C^4_(30)=(30*29*28*27)/(4*3*2*1) = 27405

Protspace answered Dec 25, 2018

8.3k points

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