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1. |
A box contains 10 balls out of which 3 are red and rest are blue. In how many ways can a random sample of 6 balls be drawn from the bag so that at the most 2 red balls are included in the sample and n |
A. | 105 |
B. | 168 |
C. | 189 |
D. | 120 |
Answer» C. 189 | |