I am very weak in solving problem related to probability and permutation and combination. Can you please guide me the good content by which I can understand it better.
Thanks in advance.
closed as not a real question by Grigory M, Casebash, Jamie Banks, ShreevatsaR, Larry Wang Aug 4 '10 at 12:50
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You learn to swim by swimming, learn to talk by talking and you learn combinatorics by solving problems.
You can get problems at Art of Problem Solving, try to solve as many "different" problems as you can.
If you need help you know where to get it ;)
May the force be with you!