Paulsville and Longtown cannot both be included in the candidate’s itinerary of campaign stops. The candidate will make a stop in Paulsville unless Salisbury is made part of the itinerary. Unfortunately, a stop in Salisbury is out of the question. Clearly, then, a stop in Longtown can be ruled out.
The reasoning in the argument above most closely parallels that in which one of the following arguments?
(A) The chef never has both fresh radishes and fresh green peppers available for the chief’s salad at the same time. If she uses fresh radishes, she also uses spinach. But currently there is no spinach to be had. It can be inferred, then, that she will not be using fresh green peppers.
(B) Tom will definitely support Parker if Mendoza does not apply; and Tom will not support both Parker and Chung. Since, as it turns out, Mendoza will not apply, it follows that Chung will not get Tom’s support.
(C) The program committee never selects two plays by Shaw for a single season. But when they select a play by Coward, they do not select any play by Shaw at all. For this season, the committee has just selected a play by Shaw, so they will not select any play by Coward.
(D) In agricultural pest control, either pesticides or the introduction of natural enemies of the pest, but not both, will work. Of course, neither will be needed if pest-resistant crops are planted. So if pesticides are in fact needed, it must be that there are no natural enemies of the pest.
(E) The city cannot afford to build both a new stadium and the new road that would be needed to get there. But neither of the two projects is worth doing without the other. Since the city will not undertake any but worthwhile projects, the new stadium will not be constructed at this time.
_________________

Regards, S

My Choice B

Stem :
1. NOT [PL]
2. If NOT S => P

Now NOT S is true, So P is certain event. So L cannot Occur.

B Choice :

1. NOT M => P
2. NOT [MP]

Now NOT M is true, So P is certain event. So M cannot occur.
_________________

The biggest risk in life is not taking one!!!

I will pick (E).. explain if correct...

Surya, I am getting psyched with ur CR Questions... I am taking hell lot of time and my accuracy is also very less.

Let

SP = stop in paulsville
SS = stop in salisbury
SL = stop in longtown

then:

SP -----> SS (given - stop in paulsville means stop in salisbury)
~SS ----> ~SL (conclusion - no stop in salisbury means no stop in longtown)

My ans. is (A).

A) The chef never has both fresh radishes and fresh green peppers available for the chief’s salad at the same time. If she uses fresh radishes, she also uses spinach. But currently there is no spinach to be had. It can be inferred, then, that she will not be using fresh green peppers.

Applying the same reasoning above,

FR = use of fresh radishes
S = use of spinach
F = fresh green peppers

FR ----> S
~S ----> ~F

...which is the same reasoning as given in the stimulus

If P then non L, and If L then non P. P unless S. Non S.
Conclusion: non L.

Let's do our own logic reasoning to see how the author gets to the conclusion. Non S, therefore P. P, Therefore non L.

(A) The chef never has both fresh radishes and fresh green peppers available for the chief’s salad at the same time. If she uses fresh radishes, she also uses spinach. But currently there is no spinach to be had. It can be inferred, then, that she will not be using fresh green peppers.
If R then non G, if G then non R. If R, then S. Non S. Therefore non G.
Wrong logic. The bolded part is different from stem. "P unless S" means "If S then non P, if non S then P".

(B) Tom will definitely support Parker if Mendoza does not apply; and Tom will not support both Parker and Chung. Since, as it turns out, Mendoza will not apply, it follows that Chung will not get Tom’s support.
If P then non C, if C then non P. If non M then P. Non M. Therefore non C.
This resambles the stem.

(C) The program committee never selects two plays by Shaw for a single season. But when they select a play by Coward, they do not select any play by Shaw at all. For this season, the committee has just selected a play by Shaw, so they will not select any play by Coward.
If S1 then non S2, if S2 then non S1. If C then non S. S, therefore non C.
Wrong logic, bolded part is different from the stem.

(D) In agricultural pest control, either pesticides or the introduction of natural enemies of the pest, but not both, will work. Of course, neither will be needed if pest-resistant crops are planted. So if pesticides are in fact needed, it must be that there are no natural enemies of the pest.
If P then non N, if N then non P. If C, then non P, and non N. P, therefore non N.
Correct logic, but not similar to the stem.

(E) The city cannot afford to build both a new stadium and the new road that would be needed to get there. But neither of the two projects is worth doing without the other. Since the city will not undertake any but worthwhile projects, the new stadium will not be constructed at this time.
If S then non R, if R then non S. If non S then non R, if non R then non S. Therefore non S.
Correct logic, but not similar to the stem.

The answer is (B). This type of question is definitely a time eater. However you could stop working on each choice once you get to the unsimilar part, and do not have to judge if it is correct or not.

saurya, I shortened your quote so the post is clearer.

Anyway, please look at this example:
I'll go to school unless it rains.
It means:
If it rains, I won't go. If it doesn't rain, I'll go.

Yes.

Try to pursuade myself. A and B are more likely.
Question:

Paulsville and Longtown are mutually exclusive.
If no Salisbury, then Paulsville
Because no Salisbury; so no Longtown.

(A)
radish and green pepper are mutually exclusive.
If radish, then spanish.
Because no spinach; so no green peppers.

(B)
Parker and Chung are mutually exclusive.
If no Mendoza, then Parker
Because no Mendoza; so no Chung

HongHu, are you GOD?

Here's a CR for you.

A: Are you God?
B: No. Most of the times I don't make rules; I just follow rules.

Question: what is the assumption underline B's statement?

(A) God exists.
(B) Nobody can be God.
(C) God makes rules all the time.
(D) God doesn't follow rules sometime.
(E) If I make rules all the time I will be God.

"E" if the ques had said....which of this is also must be "true"
"C" is the assumption.