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, 2020

Combinatorics Difficulty 1.4 Junior Find the answer Canada

Each Tuesday, a bus makes its first stop at Gauss Public Library at 1 p.m. It continues to stop at the library every 20 minutes. Its last stop is at 6 p.m. What is the total number of times that the bus stops at Gauss Public Library on a Tuesday?

Pick one

Solution

Each of 7 boxes contains exactly 10 cookies, and so the total number of cookies is $7\times10=70$ .
If the cookies are shared equally among 5 people, then each person receives $70\div5=14$ cookies.

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.