Question
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
BITSAT
Mathematics
Probability
2023
BITSAT 2023 (Memory Based Paper 2)
BITSAT Mathematics Question (2023) — Solution
Options
- A. 1/7
- B. 4/7
- C. 2/7
- D. 5/7
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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