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A bag contain 10 blue and 3 red balls and a second bag contain 3 blue and 5 red balls. Two balls drawn from first bag at random are put in the second bag, then a ball is drawn from the second bag. Find the probability that it is a blue ball.

Posted by Naocha Tongbram 3 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Induja Mareeswaran 3 years, 11 months ago

When 2 balls drawn from first bag at random are put in 2nd bag,the total no of balls in2nd bag now is 10. If both the balls taken from bag 1 are blue then bag 2 has 5 blue balls in total So the p(E) is 5/10=1/2 Hope this helps u

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