mathematics

A bag contains 10 red, 15 white, 25 green balls. What should be the minimum number of balls drawn without replacement so that you get 5 red, 3 white, 10 green balls.

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asked by Jai
  1. In order to guarantee any reds at all, you need to draw 41, since the first 40 might be all green and white.

    So, 45 draws will guarantee 5 reds.

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    posted by Steve

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