Maths Olympiad Prep

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, 2025

Algebra Difficulty 1.1 Junior Find the answer Canada

At 8:45 a.m.\text{8:45 a.m.}, Aisha
starts a movie that is 22 hours and
4545 minutes long. If she watches the
movie all the way through without a pause or a break, at what time will
it finish?

Pick one

Solution

Solution 1:

The time 2 hours after 8:45 a.m. is 10:45 a.m., and the time 45
minutes after 10:45 a.m. is 11:30 a.m.

Solution 2:

Two hours and 45 minutes is 15 minutes less than 3 hours.

The time 3 hours after 8:45 a.m. is 11:45 a.m., and the time 15 minutes
before 11:45 a.m. is 11:30 a.m.

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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.