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2017 AMC 8 Problems/Problem 23

Revision as of 13:37, 22 November 2017 by Kvedula2004 (talk | contribs) (Created page with "From the question <cmath>\dfrac{60}{x},\dfrac{60}{x+5},\dfrac{60}{x+10},\dfrac{60}{x+15}\in \mathbb{N}</cmath> and by simple guess and check, the answer is <cmath>\dfrac{60}{5...")
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From the question \[\dfrac{60}{x},\dfrac{60}{x+5},\dfrac{60}{x+10},\dfrac{60}{x+15}\in \mathbb{N}\] and by simple guess and check, the answer is \[\dfrac{60}{5}+\dfrac{60}{10}+\dfrac{60}{15}+\dfrac{60}{20}=\boxed{25}\] -kvedula2004

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