SOLUTION: In how many ways can 3 people be selected from 20 candidates? for some reason I did 3 x 20 and get 60 but feel wrong.

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Question 604776: In how many ways can 3 people be selected from 20 candidates?
for some reason I did 3 x 20 and get 60 but feel wrong.
Answer by lawdej(58) About Me  (Show Source):
You can put this solution on YOUR website!
your way is wrong use combination rule
20C3=20!/((20-3)! x 3!)=(20 x 19 x 18)/6=20x19x3=1140