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91. A bag contains 4 red and 3 black balls.A second bag contains 2 red and3 black balls. One bag is selected atrandom. If from the selected bag oneball is drawn, then what is theprobability that the ball drawn is red ? .(A) 3970(B) 4170(C) 2970(D) 1735 |
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Answer» Step-by-step EXPLANATION: |
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