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Junior Varsity Individual Round 1 Question 18

 
 
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Junior Varsity Individual Round 1 Question 18
by Lucas Qi - Thursday, August 12, 2021, 5:53 PM
 

I'm a bit confused on the solution for question 18. The solution subtracts floor(2021/(3*673)) but it doesn't subtract floor(2021/(43*47)) to subtract the over counting for 43 and 47. I got 735 as my answer so I'm a bit confused why the solution didn't subtract another 1.

 
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Re: Junior Varsity Individual Round 1 Question 18
by John Lensmire - Friday, August 13, 2021, 10:33 AM
 

Thanks again for this catch. Updated for future use, but the problem won't be counted for determining winners (also doesn't affect the outcome regardless).

 
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