In a factory which manufactures bolts, m...

In a factory which manufactures bolts, machines A. B and C manufacture respectively 25%, 35% and 40% 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 b

`17/69`

`28/69`

`35/69`

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In a bolt factory,machines A,B and C manufacture respectively 25%,35% and 40% of the total bolts.Of their output 5,4 and 2 percent are respectively defective bolts.A bolt is drawn at random from the product.What is the probability that the bolt drawn is defective?

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