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BITSAT2023MathematicsProbabilityActual

If A and B are mutually exclusive events and if P ( B )= 1 3 , P ( A B )= 13 21 , then P ( A ) is equal to

Options

  1. A1/7
  2. B4/7
  3. C2/7
  4. D5/7

Correct answer

C. 2/7

Step-by-step solution

For mutually exclusive events P ( A B )= P ( A )+ P ( B ) P ( A )= 2 7

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