Maths Olympiad Prep

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CEMC Pascal, 2014

Algebra Difficulty 1.4 Junior Find the answer Canada

Strips are made up of identical copies of blocks. Each block has length 23\frac{2}{3}. Which strip has length 4?

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A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.

Solution

Since each block has length 23\frac{2}{3}, then a strip of three block will have length 3×23=23 \times \frac{2}{3}=2.

We need two strips of length 2 to get a strip of length 4.

Since 3 block make a strip of length 2, then 6 block make a strip of length 4.

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