A box contains 12 marbles of three different colours
green, yellow and blue- 4 each.
If you were to close your eyes and pick them at random, how
many marbles must you take out to be sure that there is at least two of one
colour among the marbles picked out?
Answer: In the
first pickings you may get 1 of each colour, on the 4th pick there will
be at least two of the colour.
Therefore, the answer is 4
No comments:
Post a Comment