Question

A group of 5 students is to be chosen from a class of
20 students to work on a term project. How many different groups of
students can be chosen from the class?
20C5 = (20*19*18*17)/(1*2*3*4*5)
4
The answer is straight out 4!

shown work

20-5=15 5 = 1group
20 divided by 5 equals 4

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