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The integers r and k are randomly selected, where −3 < r < 6 and 1 < k < 8. What is the
probability that the division r ÷ k is an integer value? Express your answer as a common fraction.

 Jan 6, 2021
 #1
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  -2 -1 0 1 2 3 4 5
2 Y N Y N Y N Y N
3 N N Y N N Y N N
4 N N Y N N N Y N
5 N N Y N N N N Y
6 N N Y N N N N N
7 N N Y N N N N N

Total possibilities: 48

Successful outcomes: 12

Probability: 12/48=1/4

:D

 Jan 6, 2021

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