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Two distinct numbers are selected simultaneously and at random from the set {1,2,3,4,5,6} . What is the probability that the smaller one divides the larger one? Express your answer as a common fraction.

 Mar 31, 2021
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Casework this maybe

 

for 6-->3,2  divide it

for 5-->1

for 4-->1,2

for 3-->1

for 2-->1

so we have 7 combinations that work

total number of possible combinations are 6*5/2 = 15

 

so ans is 7/15 i think...

 Mar 31, 2021

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