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CBSE Class 12 Mathematics 2026 Supplementary Paper 65/7/1 · Q181 Marksindependence

CBSE Class 12 Mathematics 2026 Supplementary Paper 65/7/1 · Question 18 (Probability)

Independent events satisfy \(P(A)=0.45\) and \(P(A\cup B)=0.5\). Find \(P(B)\).

✅ Step-by-Step Solution

Final Answer: \(1/11\)
  1. Let p=P(B). Then 0.45+p−0.45p=0.5, giving p=0.05/0.55=1/11.

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