Question
If A and B are any two events such that P(A) + P(B) - P(A and B) = P(A), then
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P(B|A) = 1
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P(A|B) = 1
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P(B|A) = 0
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P(A|B) = 0
Solution
B.
P(A|B) = 1
∴ (B) is correct answer.