Three companies X, Y and Z supply computers to a university. The percentage of computers supplied by them and the probability of those being defective are tabulated below:
| Company | % of computer | Probability of being supplied defective |
| X | 60% | 0.01 |
| Y | 30% | 0.02 |
| Z | 10% | 0.03 |
Given that a computer is defective, the probability that it was supplied by Y is
A. 0.1
B. 0.2
C. 0.3
D. 0.4
Answer: Option D
This Question Belongs to Engineering Maths >> Probability And Statistics
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