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AP EAMCET20227 Jul 2022Evening ShiftMathematicsProbabilityActual

Person A can solve 90 % of the problems given in the book and Person B can solve 70 % . Then, the probability that atleast one of them will solve the proplem selected at random from the book is

Options

  1. A0.16
  2. B0.69
  3. C0.97
  4. D0.20

Correct answer

C. 0.97

Step-by-step solution

Event A A solves the problem. Event B B solves the problem. aligned P ( success ) & =1-P( A ) P( B ) & =1- 10 100 30 100 & =1- 3 100 = 97 100 =0.97 aligned

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