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A number is chosen at random from the set {1, 2, 3, ..., 30}.  What is the probability that the number is a multiple of 3 or 13?

 Dec 5, 2019

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There are 10 multiples of 3 between 1 and 30

There are 2 multiples of 13 between 1 and 30

 

The probability = 12 / 30 = 2 / 5

 Dec 5, 2019
 #1
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+1
Best Answer

There are 10 multiples of 3 between 1 and 30

There are 2 multiples of 13 between 1 and 30

 

The probability = 12 / 30 = 2 / 5

Guest Dec 5, 2019

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