A company has 10 men qualified to run a machine that requires 3 operators at a time. Find how many groups of 3 operators are possible. 720 240 120

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  1. Muhannad
    120 groups (10*9*8/3*2*1=120) of 3 (k) operators are possible to make from the 10 (n) qualified employees. This problem can be solved using the combination formula in mathematics which is to find the possible number of combination (group of operator) from a set of choices. (Formula : n * (n-1) * ... * (n-k+1) / k!).
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