A bag contains 5 black and 6 red balls. Determine the number of wa | Filo
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Class 11



Permutations and Combinations

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A bag contains black and red balls. Determine the number of ways in which black and red balls can be selected.

Solution: There are black and red balls in the bag.
black balls can be selected out of black ball in ways and red ball can be selected out of red balls in ways.
Thus, by multiplication principle, required number of ways of selecting black and red balls is  

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