Discrete Mathematics

Rule of Sum and Rule of Product

Rule of Sum and Rule of Product: Level 3 Challenges

         

How many triangles are there in the diagram above?

Abdulrahman El Shafei by Abdulrahman El Shafei

In the single-elimination NCAA Tournament, 64 teams compete in 6 bracketed rounds. How many games are there in total?

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Zandra Vinegar by Zandra Vinegar

How many 4 -digit positive integers have 2 or more zeroes?

Jay Steller by Jay Steller

How many parallelograms are formed when a set of 5 parallel lines intersects a set of 4 parallel lines?

Details and Assumptions

  • All parallel lines are extended indefinitely.
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Dinesh R by dinesh R

How many triangles are there in the above image?

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Calvin Lin by Calvin Lin
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