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Permutation and Combination
A box contains 2 white balls, 3 black ball...
1
A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw?
64
61
54
58
Asked By :
Subramanian
Category :
Permutation and Combination
Probability
Aptitude
Answer
a. 64
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