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In a factory which manufactures bolts, m...

In a factory which manufactures bolts, machines A, B and C manufacture respectively 30%, 50% and 20% of the bolts. Of there outputs 3, 4, 1 percent respectively are defective bolts. A bolt is drawn at random from the product and is found to be defective. Find the probability that this is not manufactured by machine B.

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The correct Answer is:
`(11)/(31)`
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ACCURATE PUBLICATION-PROBABILITY -Questions Carrying Type - 4 marks
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