Maths Olympiad Prep

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, 2015

Geometry Difficulty 1.4 Junior Find the answer Canada

In the diagram, the value of xx is

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Solution

Solution 1

At Gaussville School, 40%40\% or 40100=410\frac{40}{100}=\frac{4}{10} of the 480 total students voted for math. Therefore, the number of students who voted for math is 410×480=4×48=192\frac{4}{10}\times480=4\times48=192. Solution 2 At Gaussville School, 40%40\% or 0.4 of the 480 total students voted for math. Therefore, the number of students who voted for math is 0.4×480=1920.4\times480=192.

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