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Andrew chooses a number from 1 to 100, and Mary also chooses a number from 1 to 100. (They may choose the same number.) It turns out that the product of their numbers is a mutliple of 3. In how many ways could Andrew and Mary have chosen their numbers?

 Jun 26, 2021
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See here  :  https://web2.0calc.com/questions/andrew-chooses-a-number-from-1-to-100-and-mary-also

 

( If the product  is a multiple of 3, it is also  divisible  by 3  )

 

cool cool cool

 Jun 26, 2021

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