Video Source: Earning tips - Web Portals
you use this method only when the order in which the trainees are hired does not matter. so you multiply 4 choices times 3 remaining choices, and then you divide by 2 to get rid of any repeats.
Friday, April 29, 2011
SAT Prep: Test 5 Section 3 Part 5
Video Source: Earning tips - Web Portals
you use this method only when the order in which the trainees are hired does not matter. so you multiply 4 choices times 3 remaining choices, and then you divide by 2 to get rid of any repeats.
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