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Question

If statement p(qr) is true, then the truth values of statements p,q,r respectively

A
T,F,T
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B
F,T,F
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C
F,F,F
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D
All of these.
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Solution

The correct option is D All of these.
Assume p(qr) is false
p is true and (qr) is false
p is true, q and r both are false
i.e. p(qr) is false when truth values of p,q,r are T,F,F resp. otherwise it is true.

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