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An integer is randomly chosen from the integers 1 through 100, inclusive. What is the probability that the chosen integer is a perfect square or a perfect cube?

 Dec 5, 2020
 #1
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100 choices

squares   1  4  9  16  25  36   49   64    81   100

 cubes      1    8              27           64  

 

13 out of 100    (Don't count 64 TWICE ! smiley )

 Dec 5, 2020
 #2
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d'Oh!     Don't count '1' twice either !      12 out of 100 

Guest Dec 5, 2020

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