If p⇒(q∨r) is false, then truth values of p,q,r are respectively

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T, T, F

T,F,F

F, F, F

F,T,T

answer is B.

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Detailed Solution

Given statement p⇒(q∨r) is false.∵p→(q∨r)=(~p)∨(q∨r)Now, by trial and error method, if truth value of p is T,q is F and r is F, then truth value of (q∨r)is F.So, truth value of [(~p)∨(q∨r)] is false.Thus, if truth value of p, e, r are T, F, F, then thestatement p→(q∨r) is false

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