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2009 Math Kangaroo

Problem 2

Problem 2 · 2009 Math Kangaroo Easy
Arithmetic & Operations proportion

Four sticks have 8 ends. How many ends do 7 sticks have?

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Answer: E — 14
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Hint 1 of 2
Each stick has exactly 2 ends.
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Hint 2 of 2
So the number of ends is just twice the number of sticks.
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Approach: 2 ends per stick
  1. Every single stick has 2 ends, no matter how many sticks there are.
  2. 7 sticks × 2 ends each = 14 ends.
  3. So 7 sticks have 14 ends.
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