. How many ways of choosing 4 cards from a pack of 52 playing cards, in which two are red cards and
two are black cards ?
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it's hack please help me
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Answer:
The number of ways to choose 4 cards from 52 is 52C4 = (52 x 51 x 50 x 49)/(4 x 3 x 2) = 13 x 17 x 25 x 49 = 270,725.
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