doubt...

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doubt...

by shipra » Thu Jun 12, 2008 4:10 am
If A, then B.
If B, then C.
If C, then D.
If all of the statements above are true, which of the following must also be true?
(A) If D, then A.
(B) If not B, then not C.
(C) If not D, then not A.
(D) If D, then E.
(E) If not A, then not D
Source: — Critical Reasoning |

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by codesnooker » Thu Jun 12, 2008 4:46 am
Answer should be (D).

Other options are making sense but if you make one of them as true then others are also true.

BTW (by the way), what is OA (official answer)

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by peter.p.81 » Wed May 11, 2016 12:25 am
I'm pretty confident that D is correct answer.