LSAT 逻辑游戏题（4）

tingwutina

sacar， I think that the answers to No。1和 no.7 are opposite. My answer is
1. C
2. C
3. B
4. C
5. D
6. B
7. E
for No.1 She votes for the gun control bill only if she votes against the environment bill.  That means she cannot  vote for neither gun control nor environmental . E cannot be the correct answer.

sdcar2010

sacar， I think that the answers to No。1和 no.7 are opposite. My answer is
1. C
2. C
3. B
4. C
5. D
6. B
7. E
for No.1 She votes for the gun control bill only if she votes against the environment bill.  That means she cannot  vote for neither gun control nor environmental . E cannot be the correct answer.

-- by 会员 tingwutina (2011/1/3 9:49:18)

She votes for the gun control bill only if she votes against the environment bill.

The phrase "only if" introduces a necessary condition.

If she votes for the gun control bill, then she votes against the environment bill.   For gun control --> Against environ.
The contrapositive would be: If she votes for the environment bill, then she votes against the gun control bill.  For environ --> Against gun control

Obviously, voting FOR both gun control and environment bills is forbidden.

However, she CAN vote AGAINST both gun control bill and environment bill at the same time. To put it another way, there is no trigger for the logic chain of either
Against gun control bill --> ?? or Against environment bill --> ??. These two AGAINST conditions are not mutually exclusive.

sdcar2010

Choice E in question (1) is against the following restriction:
She votes for the gun control bill if she votes for both the health care bill and the defense bill.

Gun control bill has to be in the against list if both health care bill and defense bill are therein.

baileys2010

about the 5th question.

1.if she votes for immigration law, means she is voting  against J.

2.Since voting for G means voting against E.

1+2 means, she votes against both E and J. which against she has to vote for E or J or both.

the correct answer is E.
she votes for G means against E. since either E or J. means she has to vote for J means she has to vote against I.

baileys2010

question 4.

what about just voting against E and I? vote for DFGHJ?

sdcar2010

about the 5th question.

1.if she votes for immigration law, means she is voting  against J.

2.Since voting for G means voting against E.

1+2 means, she votes against both E and J. which against she has to vote for E or J or both.

the correct answer is E.
she votes for G means against E. since either E or J. means she has to vote for J means she has to vote against I.

-- by 会员 baileys2010 (2011/1/14 15:46:15)

You misunderstood the following condition:
Unless she votes against the judicial activism bill, she will vote for the immigration bill.

The above statement equals "if J, then I; if NOT I, then NOT J"

Think about it.  It is very important you become familiar with the UNLESS/WITHOUT clauses in logic games.

sdcar2010

question 4.

what about just voting against E and I? vote for DFGHJ?

-- by 会员 baileys2010 (2011/1/14 15:52:47)

When E is out, I and J are in.

For this question, when I is out, J is out, then E is in, then G is out.  So you have at least 3 out: I, J, G.

baileys2010

Thanks a lot. I am quite new with these games.

小cvv

thanks for the posts. I like this thread very much. Challenging my brain helps me to kill time.  lol

cantarella

question 4.

what about just voting against E and I? vote for DFGHJ?

-- by 会员 baileys2010 (2011/1/14 15:52:47)

When E is out, I and J are in.

For this question, when I is out, J is out, then E is in, then G is out.  So you have at least 3 out: I, J, G.

-- by 会员 sdcar2010 (2011/1/14 22:29:29)

and when G is out, at least one of the H or D is out, coz:

She votes for the gun control bill if she votes for both the health care bill and the defense bill.

so I think shoule be C for Q4
at least I, J, G, H or D