User contributions
- 13:37, 22 November 2017 (diff | hist) . . (+253) . . N 2017 AMC 8 Problems/Problem 23 (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...")