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Question

If statement (pq)(qr) is false, then truth values of statements p,q,r respectively, can be :

A
FTF
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B
TTT
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C
FFF
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D
FTT
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Solution

The correct option is A FTF
p q r pq qr (pq)(qr)
TT T T T T
T T F T F F
TF T F T T
T FF F T T
FT T T T T
FT F T F F
FF T T T T
F F F T T T
If p=T or p=F
q=T q=T
r=F r=F
Then the statement (pq)(qr) is false.

1167974_1277597_ans_2a02148a64a3451e8514aaec2d4ecec3.JPG

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