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In a bolt factory three machines A, B an...

In a bolt factory three machines A, B and C manufacture respectively 2000, 2500 and 4000 bolts everyday. Of their outputs `3%, 4%` and `2.5%` are defective bolts. One bolts. One bolt is drawn at random from a day's production and is found to be defective. Then the probability that it was produced by machine C is -

A

`(3)/(13)`

B

`(4)/(13)`

C

`(5)/(13)`

D

`(7)/(13)`

Text Solution

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The correct Answer is:
C
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 4
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