A bag contains 4 white, 5 red and 6 blue balls. Three balls drawing at random from the them are red is _____?
- 2/91
- 2/77
- 1/22
- None of these
Explanation
Total ways to draw 3 balls = C(15, 3) = 455
Ways to draw 3 red balls = C(5, 3) = 10
Probability = 10/455 = 2/91
Related MCQs
- 1/5
- 1/6
- 1/7
- None of these
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- 5/6
- 5/7
- 5/8
- None of these
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- 1/2
- 2/3
- 3/4
- None of these
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- 4/15
- 6/15
- 5/15
- None of these
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- Favorable Outcomes ÷ Total Outcomes
- Total Outcomes ÷ Favorable Outcomes
- Favorable Outcomes × Total Outcomes
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
