Questions  

If p, q and r are simple propositions such that (pq)(qr) is true, then

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By Expert Faculty of Sri Chaitanya
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a
p, q and r are all false
b
p, q and r are all true
c
p, q are true and r is false
d
p is true and q, r are false
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detailed solution

Correct option is B

(p∧q)∧(q∧r) is true which means that p∧q and q∧r are both true. Therefore, p, q and r are all true.

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