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# If A, then B. If B, then C. If C, then D. If all of the

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Manager
Joined: 07 Jan 2008
Posts: 87

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If A, then B. If B, then C. If C, then D. If all of the [#permalink]

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03 Feb 2008, 07:43
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7. 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.

My explanation is as follows:
If B, then C therefore if no B, no C

Can someone explain this?

Kudos [?]: 260 [0], given: 1

Manager
Joined: 02 Jan 2008
Posts: 157

Kudos [?]: 134 [0], given: 0

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03 Feb 2008, 07:46
Refer here 11-t58503

Kudos [?]: 134 [0], given: 0

Re: CR 1000CR Q7   [#permalink] 03 Feb 2008, 07:46
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# If A, then B. If B, then C. If C, then D. If all of the

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