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If all multiples of 3 and all multiples of 4 are removed from the list of whole numbers 1 through 1200, then how many whole numbers are left?

 May 12, 2022
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There will be 600 numbers left. There are 400 multiples of 3 up to 1200, and 300 multiples of 4, and 100 multiples of 12

 

400+300-100 = 600

 

1200 - 600 = 600

 May 12, 2022
edited by Guest  May 12, 2022

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