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MHT CET2007MathematicsProbability

The odds against a certain event are 5: 2 and the odds in favour of another independent event are 6: 5 . The probability that at least one of the events will happen, is

Options

  1. A25 77
  2. B52 77
  3. C12 77
  4. D65 77

Correct answer

B. 52 77

Step-by-step solution

Let A and B are two given events. array l P(A)= 2 7 , P(B)= 6 11 Required probability =1-P( A ) P( B ) =1- (1- 2 7 ) (1- 6 11 ) = 52 77 array

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