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A and B throw two dice each.If A gets a sum of 9 on his two dice ,then find the probability of B getting a higher sum.
This question has multiple parts. Therefore each part has been answered as a separate question on Clay6.com
isc
class12
modelpaper
2006
sec-a
q8
q8-a
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Apr 16, 2013
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sreemathi.v
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There are 3 urns A,B and C.Urn A contains 4 red balls and 3 black balls.Urn B contains 5 red balls and 4 black balls.Urn C contains 4 red balls and 4 black balls.One ball is drawn from each of these urns.What is the probability that the 3 balls drawn consist of 2 red balls and 1 black ball?
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Apr 15, 2013
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Bag A contains 5 white and 4 black balls,and bag B contains 7 white and 6 black balls.One ball is drawn from the bag A and with out noticing its color,is put in the bag B.If a ball is then drawn from bag B,find the probability that it is black in colour.
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Apr 12, 2013
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Akhil and Vijay appear for an interview for two vacancies.The probability of Akhil's selection is $\large\frac{1}{4}$ and Vijay's selection is $\large\frac{2}{3}$.Find the probability that only one of them will be selected.
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Apr 12, 2013
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isc
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A bag contains 8 red and 5 white balls.Two successive draws of 3balls are made at random from the bag without replacements.Find the probability that the first draw yields 3 white balls and the second draw 3 red balls.
asked
Apr 10, 2013
by
sreemathi.v
isc
class12
modelpaper
2012
sec-a
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The bag 'A' contains 3 white and 2 black balls while the bag 'B' contains 2 white and 5 black balls.One of the bags is chosen at random and a ball is drawn from it.What is the probability that the balls is white.
asked
Apr 16, 2013
by
sreemathi.v
isc
class12
modelpaper
2007
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In a certain city,the probability of not reading the morning newspaper by the residents is $\large\frac{1}{2}$ and that of not reading the evening newspaper is $\large\frac{2}{5}$.The probability of reading both the newspapers is $\large\frac{1}{5}$.Find the probability that a resident reads either the morning or evening or both the papers.
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Apr 17, 2013
by
sreemathi.v
isc
class12
modelpaper
2005
sec-a
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A purse contains 4 silver and 5 copper coins.A second purse contains 3 silver and 7 copper coins.If a coin is taken out at random from one of the purses,what is the probability that it is a copper coin?
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Apr 11, 2013
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isc
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2011
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