math

A drawer contains 8 handkerchiefs. There are 2 red, 2 blue, 2 green and 2 black handkerchiefs.
How many handkerchiefs have to be draw in order to be sure that you will get a RED one?

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  1. It's unlikely, but this could happen:

    (1) You pick all the black.
    (2) You pick all the green.
    (3) You pick all the blue.
    (4) You finally pick a red.

    How many would that be?

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