Macorons

Level pending

you have 100 macorons, 92 of them have strawberry frosting, 90 of them have blueberry frosting, 86 of them have peach frosting, and 80 of them have raspberry frosting. At least how many have all four kinds of frosting!


The answer is 48.

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1 solution

Jonathan Hsu
Apr 7, 2015

Use the Pigeon-Hole Principle!

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