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Question

If p is true, q is false and r is false, then which of the following is true?

A
(pq)r
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B
p(qr)
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C
(pq)r
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D
p(qr)
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Solution

The correct option is B p(qr)
p=T, q=F, r=F

pqrpq(qr)qr(pq)rp (qr)(pq)rp(qr)TFFTTTFTFF

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