If P(A)=0 5, P(B)=0 7 and P(A B)=0 3, then what is the value of P(A' B')+P(A' B)+P(A B')?

NDA 2022 Mathematics question

If , and , then what is the value of ?

Answer: (B)

The four events , , and are mutually exclusive and

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Question ID VK-029518