Maths Olympiad Prep

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Problem 65

Combinatorics Difficulty 1.0 Find the answer CEMC Gauss (Grade 7) · Canada · 1999

A box contains 3636 pink, 1818 blue, 99 green, 66 red, and 33 purple cubes that are identical in size. If a cube is selected at random, what is the probability that it is green? (A) 19\frac{1}{9} (B) 18\frac{1}{8} (C) 15\frac{1}{5} (D) 14\frac{1}{4} (E) 970\frac{9}{70}

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