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2024 Math Kangaroo

Problem 1

Problem 1 · 2024 Math Kangaroo Easy
Logic & Word Problems careful-counting

Which number is in the triangle and also in the square and also in the circle?

Figure for Math Kangaroo 2024 Problem 1
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Answer: C — 5
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Hint 1 of 3
We want a number that lives inside all three shapes, not just one or two of them.
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Hint 2 of 3
Find the little spot in the middle where the triangle, the square, and the circle all cover each other.
Still stuck? Show hint 3 →
Hint 3 of 3
Read the number sitting in that shared middle spot.
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Approach: find the number in the shared middle spot
  1. The three shapes overlap in the middle, making a small spot that is inside the triangle AND the square AND the circle.
  2. Only one number sits in that shared middle spot.
  3. That number is 5, so the answer is 5.
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