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Q: The probability of occurance of two two events A and B are 1/4 and 1/2 respectively. The probability of their simultaneous occurrance is 7/50. Find the probability that neither A nor B occurs.

  • 1
    25/99
  • 2
    39/100
  • 3
    61/100
  • 4
    17/100
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Answer : 2. "39/100"
Explanation :

Answer: B) 39/100 Explanation: P ( neither A nor B) = PA and B     =  PA∩B=  PA∪B= 1-PA∪B     = 1-61100=39100

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