Problems And Solutions [cracked] - Mathcounts National Sprint Round

Case 1: Exactly 2 Red (and 1 Blue)Ways to pick 2 red: 5C2 = 10.Ways to pick 1 blue: 5C1 = 5.Total for Case 1: 10 × 5 = 50. Case 2: Exactly 3 RedWays to pick 3 red: 5C3 = 10.

Richard Rusczyk provides video walkthroughs of many challenging national-level problems. PAST COMPETITIONS | MATHCOUNTS Foundation Mathcounts National Sprint Round Problems And Solutions

A square and an equilateral triangle have the same perimeter. If the side length of the triangle is 8, what is the area of the square? Case 1: Exactly 2 Red (and 1 Blue)Ways

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