) a box contains 12 marbles of three colors – green, yellow & blue – 4 each. If you were to close your eyes & pick it up, how many marbles must you take out to be sure that there are at least 2 of one colour among the marbles picked out.(SakDevi-73).Try with 20 marbles also.

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charu

  • Jun 25th, 2006
 

If the person has to choose two of same colour then he has to pick up atleast four marbles to have the two same coloured marbles!! 

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