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If Martin introduces an amendment to Evans’s bill, then Johnson and Ll

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If Martin introduces an amendment to Evans’s bill, then Johnson and Ll [#permalink]

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New post 04 Dec 2017, 08:41
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Question Stats:

21% (01:08) correct 79% (02:34) wrong based on 56 sessions

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If Martin introduces an amendment to Evans’s bill, then Johnson and Lloyd will both vote the same way. If Evans speaks against Lloyd’s position, Johnson will defend anyone voting with him. Martin will introduce an amendment to Evans’s bill only if Evans speaks against Johnson’s position. If the above statements are true, each of the following can be true EXCEPT

(A) if Evans speaks against Johnson’s position, Lloyd will not vote with Johnson.
(B) if Martin introduces an amendment to Evans’s bill, then Evans has spoken against Johnson’s position.
(C) if Evans speaks against Johnson’s position, Martin will not introduce an amendment to Evans’ bill.
(D) if Martin introduces an amendment to Evans’s bill, then either Johnson will not vote with Lloyd or Evans did not speak against Johnson’s position.
(E) if either Evans did not speak against Lloyd’s position or Martin did not introduce an amendment to Evans’s bill, then either Johnson did not defend Lloyd or Martin spoke against Johnson’s position.

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If Martin introduces an amendment to Evans’s bill, then Johnson and Ll [#permalink]

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New post 22 Dec 2017, 02:29
very tricky

Answer (D)

tempting to choose C, but C can be true also.

Martin will introduce an amendment to Evans’s bill only if Evans speaks against Johnson’s position

A, only if B => if A, then it must be B definitely. => If Martin introduces an amendment to Evans’s bill(A) -> then definitely Evans has spoken against Johnson’s position(B)
but if B, -> may or may not be A.

So option C can be true as well.

On other hand D.

If Martin introduces an amendment to Evans’s bill (A), -> Johnson and Lloyd will both vote the same way (C)
from above, If Martin introduces an amendment to Evans’s bill(A) -> then definitely Evans has spoken against Johnson’s position(B)

in other words, If Martin introduces an amendment to Evans’s bill (A) -> Johnson and Lloyd will both vote the same way (C) AND definitely Evans has spoken against Johnson’s position(B)

A -> B AND C

option D says
if Martin introduces an amendment to Evans’s bill, -> either Johnson will not vote with Lloyd or Evans did not speak against Johnson’s position

it is of form A -> (not B) OR (not C) which is definitely false, as we know from above A -> B AND C

Kudos if you like my reasoning, need them badly to unlock my Gmat Club Tests

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If Martin introduces an amendment to Evans’s bill, then Johnson and Ll   [#permalink] 22 Dec 2017, 02:29
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