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The contrapositive of  (pq)r is 

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By Expert Faculty of Sri Chaitanya
a
r→(p∨q)
b
~r→(~p)∧(~q)
c
(~p)∨(~q)→∼r
d
none of these

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detailed solution

Correct option is B

Contrapositive of p∨q→r is ~r→∼(p∨q) i.e. ~r→(~p)∧(~q)


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The contrapositive of inverse of p→∼q is

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