You have 40 balls in a bag: 15 identical blue, 12 identical black, and 13 identical red. You are not allowed to look inside the bag. How man

Question

You have 40 balls in a bag: 15 identical blue, 12 identical black, and 13 identical red. You are not allowed to look inside the bag. How many balls must you take out from the bag to be sure that 100 percent you get one blue ball?

40

15

12

26

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Thiên Hương 3 years 2021-08-05T19:38:10+00:00 2 Answers 6 views 0

Answers ( )

  1. mocmien2
    0
    2021-08-05T19:39:33+00:00
    Reply

    You have to take out 26 of the balls

  2. Farah
    0
    2021-08-05T19:40:08+00:00
    Reply

    To have at least one blue ball you mush take out 26 of the balls.

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