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In a factory which manufactures bolts, m...

In a factory which manufactures bolts, machine A, B and C manufacture respectively 25%, 35% and 45% of the bolts. Of their outputs 5, 4 and 2 percent are respectively defective bolts. A bolt is drawn at random from the product and is found to be defective. What is the probability that if is manufactured by machine B?

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The correct Answer is:
`(28)/(69)`
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NEW JOYTHI PUBLICATION-PROBABILITY-QUESTIONS FROM COMPETITIVE EXAMS
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  14. Let A and B be two events such that P(A cup B) = P(A) + P(B) - P(A)P(...

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  15. A and B are events such that P(A cip B)= (3)/(4), P(A cap B)= (1)/(4...

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  16. Events A, B, C are mutually exclusive events such that P(A) = (3x +1...

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