Mathematics, 31.03.2020 04:03 taylorrsmithh

There are 70 balls in a box: 20 red, 20 blue, 20 yellow, and 10 that are either black or white. What is the least number of balls you must take out of the box (without looking) to be sure that among them there are 10 balls of the same color?

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There are 70 balls in a box: 20 red, 20 blue, 20 yellow, and 10 that are either black or white. What...