TS EAMCET · Maths · Probability
In a battery manufacturing factory, machines P,Q and R manufacture \(20 \%, 30 \%\) and \(50 \%\) respectively of the total output. The chances that a defective battery is produced by these machines are \(1 \%, 1.5 \%\) and \(2 \%\) respectively. If a battery is selected as random from production, then the probability that it is defective is
- A \(\frac{69}{2000}\)
- B \(\frac{33}{2000}\)
- C \(\frac{1}{40}\)
- D \(\frac{29}{2000}\)
Answer & Solution
Correct Answer
(B) \(\frac{33}{2000}\)
Step-by-step Solution
Detailed explanation
Let \(E_1\) be an event that the battery is produced by machine \(\mathrm{P}\) \(E_2\) be an event that the battery is produced by machine Q. \(E_3\) be an event that the battery is produced by machine R. and \(\mathrm{A}\) be an event that the battery is defective. Now,…
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