Most parents who are generous are good parents, but some self-centered

Question

Most parents who are generous are good parents, but some self-centered parents are also good parents. Yet all good parents share one characteristic: they are good listeners.

If all of the statements in the passage are true, which one of the following must also be true?

(A) All parents who are good listeners are good parents.
(B) Some parents who are good listeners are not good parent.
(C) Most parents who are good listeners are generous.
(D) Some parents who are good listeners are self-centered.
(E) Fewer self-centered parents than generous parents are good listeners

shanewyatt · Accepted Answer

A - The word "all" should be an indicator that this answer is incorrect. The wording is too strong and the conclusion is "good parents are good listeners" and not necessarily "good listeners are good parents".
B - This is probably true and deserves consideration but it is never fully implied anywhere.
C - The passage states that both generous and self-centered can be good parents, but not necessarily.
D - This is my choice. Some self-centered -> good parents -> all good parents -> good listeners.
E - Passage doesn't touch on ratio of self-centered to generous that are good listeners.

garimavyas · Answer

D is obvious here . some parents who are good listeners are self centered .

it is stated that some self centered parents are good parents and all good parents are good listeners. therefore some self centered parents are good listeners.

now it becomes obvious . consider a set of good listeners . it has a subset of parents who are self centered. hence D

MBAhereIcome · Answer

remember one rule: if a->b, then it not neccessarily b->a.

generous ---most---> good ----all---> good listener
self cent ---some---> parents |

D) some self centered are good, and all good are listeners. so some listeners must be self-centered. correct!!

JS1290 · Answer

@Experts, could you please explain why C is incorrect and D is correct? I am extremely confused

GMATNinja · Answer

"Yet all good parents share one characteristic: they are good listeners." - this suggests that being a good parent is SUFFICIENT for being a good listener. In other words, if this statement is true and we know someone is a good parent, we can infer that this person is probably also a good listener.

Notice that this does NOT necessarily imply that the opposite is true. In other words, just because a parent is a good listener, does not necessarily mean they are a good parent. In fact, even if the statements in the passage are all true, it is possible that MOST parents who are good listeners are actually BAD parents. Being a good listener might be necessary for being a good parent, but it is not necessarily sufficient.

Given that "most parents who are generous are good parents" and that being a good parent means you are probably a good listener, we can properly infer that most parents who are GENEROUS are also good listeners, but we CANNOT properly infer that most parents who are GOOD LISTENERS are also generous.

I hope that helps! And we have an article about the distinction between necessary vs. sufficient on its way, so keep an eye on our  Topic of the Week  series.

ed1deee · Answer

Question: Is there conditional reasoning present in this stimulus? It seems more like a fact set than a stimulus with conditional reasoning.

auradediligodo · Answer

Most parents who are generous are good parents, but some self-centered parents are also good parents. Yet all good parents share one characteristic: they are good listeners.

If all of the statements in the passage are true, which one of the following must also be true?
 
 Inference question

Pre-thinking

Inference#1  : parents who are generous and good parents are good listeners
  Inference#2   Self centered parents who are good parents are good listeners

POE:

(A) All parents who are good listeners are good parents.
 Not necessarily

(B) Some parents who are good listeners are not good parent.
 How could we know?

(C) Most parents who are good listeners are generous.
 Could or could not be

(D)   Some parents who are good listeners are self-centered.
 In line with our pre-thought inference #2

(E) Fewer self-centered parents than generous parents are good listeners
 Cannot be inferred

unraveled · Answer

Most  parents who are generous are good parents, but  some  self-centered parents are also good parents. Yet  all  good parents share one characteristic: they are good listeners.

If all of the statements in the passage are true, which one of the following must also be true?

(A)  All  parents who are good listeners are good parents. - WRONG. Reversal is not true, not necessarily.
(B) Some parents who are good listeners  are not good parent . - WRONG. Somewhat similar to A but on a smaller scale. Good parents are good listeners but reverse may or may not be true.
(C)  Most  parents who are  good listeners are generous . - WRONG. There is no such relation that can be established.
(D) Some parents who are good listeners are self-centered. - CORRECT. 
(E) Fewer self-centered parents  than  generous parents are good listeners - WRONG. A comparison is not inferable.

Answer D.

VerbalBot · Answer

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Most parents who are generous are good parents, but some self-centered

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Most parents who are generous are good parents, but some self-centered

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