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17 Nov 2017, 05:43
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
41% (01:41) correct
59%
(01:35)
wrong
based on 353
sessions
History
Date
Time
Result
Not Attempted Yet
Juana is dining at a Chinese restaurant. She will order either combination platter #2 or combination platter #5, but not both. If she orders combination platter #2, she will eat fried rice. If she orders combination platter #5, she will eat an egg roll.
Given the statements above, which of the following must be true?
(A) Juana will eat either fried rice or an egg roll but not both.
(B) If Juana eats an egg roll, then she ordered combination platter #5.
(C) If Juana does not eat an egg roll, then she ordered combination platter #2.
(D) If Juana eats fried rice, then she ordered combination platter #2.
(E) Anyone who orders combination platter #2 eats fried rice.
Given the statements above, which of the following must be true?
(A) Juana will eat either fried rice or an egg roll but not both.
(B) If Juana eats an egg roll, then she ordered combination platter #5.
(C) If Juana does not eat an egg roll, then she ordered combination platter #2.
(D) If Juana eats fried rice, then she ordered combination platter #2.
(E) Anyone who orders combination platter #2 eats fried rice.
Source: Master GMAT
17 Nov 2017, 08:44
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SajjadAhmad
just few facts that will help you in answering the Q..
Quote:
so ...
1) she will eat either #2 or #5 but not both
2) Egg roll and fried rice are NOT dependent on #2 or #5 BUT #2 or #5 are dependent on egg roll and fried rice
actual meaning..
1) If she orders combination platter #2, she will eat fried rice..
If NO fried rice, NO #2
2) If she orders combination platter #5, she will eat an egg roll.
If NO egg roll, NO #5
C follows this LOGIC so C
07 Aug 2021, 10:51
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Official Explanation
It is very important to distinguish what is called necessary conditions from what is called sufficient conditions. A necessary condition is one that must occur for a particular event to take place, e.g., oxygen is a necessary condition for a fire. A sufficient condition is one that is by itself sufficient to ensure that a certain event occurs, for example, failing the final exam of a course may be sufficient to guarantee a failing mark for the course. This distinction is the key to this item.
A statement of the sort “If X, then Y ” (as used here) sets up a sufficient but not necessary connection. For example, ordering combination #2 guarantees that Juana will eat fried rice, but that may not be the only condition on which she will eat fried rice. For all we know, combination #5 also includes fried rice. Thus, (A), (B), and (D) are wrong. As for (E), the statements that set up the problem talk specifically about Juana, not about people in general.
The correct answer is (C).
It is very important to distinguish what is called necessary conditions from what is called sufficient conditions. A necessary condition is one that must occur for a particular event to take place, e.g., oxygen is a necessary condition for a fire. A sufficient condition is one that is by itself sufficient to ensure that a certain event occurs, for example, failing the final exam of a course may be sufficient to guarantee a failing mark for the course. This distinction is the key to this item.
A statement of the sort “If X, then Y ” (as used here) sets up a sufficient but not necessary connection. For example, ordering combination #2 guarantees that Juana will eat fried rice, but that may not be the only condition on which she will eat fried rice. For all we know, combination #5 also includes fried rice. Thus, (A), (B), and (D) are wrong. As for (E), the statements that set up the problem talk specifically about Juana, not about people in general.
The correct answer is (C).
