In a toy factory, machines A, B, and C manufacture 30%, 40%, 30% of the output respectively. Out of their total output, 2%, 3%, 1% are defective. A toy is taken from the factory and is found to be defective. The probability that it was taken from machine B is:

In a toy factory, machines A, B, and C manufacture 30%, 40%, 30% of th

1.	In a toy factory, machines A, B, and C manufacture 30%, 40%, 30% of the output respectively. Out of their total output, 2%, 3%, 1% are defective. A toy is taken from the factory and is found to be defective. The probability that it was taken from machine B is:
A.	4 / 5
B.	2 / 9
C.	3 / 4
D.	4 / 7
Answer» E.

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In a toy factory, machines A, B, and C manufacture 30%, 40%, 30% of the output respectively. Out of their total output, 2%, 3%, 1% are defective. A toy is taken from the factory and is found to be defective. The probability that it was taken from machine B is:

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