A computer producing factory has only two plants T1 and T2

A computer producing factory has only two plants T1 and T2. Plant T1  produces 20% and plant T2 produces 80% of the total computers produced. 7% of computers produced in the factory turn out to be defective. It is known that P(computer turns out to be defective given that is produced in plant T1) = 10P(computer turns out to be defective given that it is produced in plant T2) where P(E) denotes the probability of an event E. A computer produces in the factory is randomly selected and it does not turn out to be defective. Then the probabality that it is produced in plant T2 is

  1. 36/73
  2. 47/79
  3. 78/93
  4. 75/83
Anurag Mishra Professor Asked on 23rd May 2016 in Maths.
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    Answer: (3) 78/93 

    Anurag Mishra Professor Answered on 24th May 2016.
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