SOLUTION: An urn contains 17 red marbles and 15 blue marbles. 12 marbles are chosen. In how many ways can 5 red marbles be chosen? I've tried different combination's and permutations, pl

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Question 424806: An urn contains 17 red marbles and 15 blue marbles. 12 marbles are chosen. In how many ways can 5 red marbles be chosen?
I've tried different combination's and permutations, plain stumped. Any help would be greatly appreciated. MM

Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

we have to select total 12 marbles, 5 red and 7 blue..

no. of ways = 17C5 * 15C7

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