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Mathematics 8 Online
OpenStudy (anonymous):

A juice company decides to test five different brands of juice. The different brands have been labeled A¸ B¸ C¸ D¸ and E. The company decides to compare each brand with the other brands by pairing together different brands. How many different pairs will result by selecting two different brands at a time?

OpenStudy (amistre64):

i believe that 5 pick 2 is twice as large as what you would need

OpenStudy (amistre64):

5 choose 2, weeds out any duplicates

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