CBSE Class 12 Mathematics 2026 Supplementary Paper 65/7/2 · Q181 Marksconditional_probability
CBSE Class 12 Mathematics 2026 Supplementary Paper 65/7/2 · Question 18 (Probability)
If P(B)=3/5, P(A | B)=1/2 and P(A∪B)=4/5, find P(A).
✅ Step-by-Step Solution
Final Answer: 1/2
- The intersection is (3/5)(1/2)=3/10. The union formula gives P(A)=4/5−3/5+3/10=1/2.
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