valvaldeziv1885 valvaldeziv1885

23-01-2018
Mathematics

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Three people 1st, 2nd and 3rd place at a competition, how many different combinations are there

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cyanbreus12 cyanbreus12

23-01-2018

a b c
1 2 3
a1 a1. a2. a2 a3. a3.
b2. b3. b1. b3. b2. b1
c3. c2. c3. c1. c1. c3
there are 6 different combinations

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