Maths Olympiad Prep

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, 2012

Geometry Difficulty 2.4 Junior Find the answer Canada

The rectangle shown has side lengths of 8 and 4.

Figure 0

The area of the shaded region is

Pick one

Solution

The graph shows that the vehicle travels at a constant speed of 20 m/s.
Travelling at 20 m/s, it will take the vehicle 100÷20=5100\div20=5 seconds to travel 100 metres.

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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.