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a bag contains 3 red 4 white balls and another ball contains 4 red 3 white a die is cast if face 1 or 3 turns up a ball is taken from the first bag and if any other face turns up . a ball is taken from second bag find the probab of drawing a red ball

#Mathematics #Algebra

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3 Answers

62

Lokesh Verma ·2009-03-16 06:20:26

probability is given by

2/6 x 3/7 + 4/6 x 4/7

= 11/21

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1

spiderman ·2009-03-17 23:14:35

yeh ek line main answer kaisa ??? sir ji explain pls answer to mere paas bhi hai..pls solve kijiye

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62

Lokesh Verma ·2009-03-17 23:43:52

probability of picking a 1 or 3 = 2/6
then in that case probability of red is 3/7

similarly whenwe dontget 1 or 3 prob is 4/6
in that case prob of white is 4/7

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