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Question-5A bag contains 5 red balls and some blue balls. If the probability of drawinga blue ball is double that of a red ball, find the number of blue balls in thebag. |
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Answer» Red balls=5; let blue balls=x; p(B)=x /x+5;p(R)=5/x+5;p(B)=2(p(r));x/x+5=2(5/ x+5); x=10 |
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