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Maths Puzzle
A bag contains 4 blue, 5 white and 6 green balls. Two balls are drawn at random. What is the probability that one ball is white?
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- (5C1*14C1)/15C2=2/3
- 11 years agoHelpfull: Yes(2) No(3)
- (5C1*10C1)/15C2=0.4761
5C1 means selecting one white ball from five white balls
10C1 means selecting another ball from remaining 10 balls(blue and green)
15C2 means selecting 2 balls from total balls(i.e 15) - 11 years agoHelpfull: Yes(2) No(3)
- I have doubt in my answer.....I think the answer which is told by ziauddin is correct.
- 11 years agoHelpfull: Yes(1) No(0)
- @durga your solution is 100% correct....there is no doubt.
- 11 years agoHelpfull: Yes(0) No(1)
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