Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Sep 0712:01 AM PDT
-11:59 PM PDT
On the 7th, GMAT Club Tests will be Free! Including all the Quizzes, Questions, and Tests. 12 AM - 11:59 PM PDT- Sep 07
10:00 AM PDT
-11:00 AM PDT
A complete walkthrough of GMAT Club’s free 12-week GMAT study plan: what you study each week, how progress and goals are tracked, how the error log works, and how your practice unlocks paid tools at no cost. 
Sep 0201:00 PM EDT
-11:59 PM EDT
Take 30% off all study plans with code COURSEWORK - Expires on Monday 9/7
Sep 0410:00 AM EDT
-11:59 PM EDT
We’ve worked incredibly hard to build TTP into the best test prep experience possible, and it would mean a lot to us to win Newsweek’s 2026 Readers’ Choice Award for Best Test Prep. If TTP has helped you, we’d be incredibly grateful for your vote.
Sep 0609:30 AM EDT
-12:30 PM EST
Top scores are possible when you enroll in a powerful EA course, taught live online + 6 months access to TTP OnDemand video courses included! Perfect class schedule and easy course access for working professionals. Class starts Sundays Sept. 6, 2026.- Sep 09
07:00 AM PDT
-10:00 AM PDT
Meet AdComs and explore top Master’s programs - MiM, MiF, MSc, MSBA and more. - Application Fee Waivers - Free 1-Week of GMAT Club Tests: - Master's Application Toolkit - Grand Prize Giveaway - Sep 09
10:00 AM PDT
-11:00 AM PDT
Three MBA applications. Three rejections. No interview invites. A year later, Aman was admitted to Cambridge Judge, SMU, and IMD. In this episode of MBA Admit Stories, Aman shares how he rebuilt his MBA application... 
Sep 1507:00 PM EDT
-09:00 PM EST
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 2108:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
07 May 2026, 05:29
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
58% (02:07) correct
42%
(02:07)
wrong
based on 156
sessions
History
Date
Time
Result
Not Attempted Yet
Since the zoo has more animals than enclosures, and every animal lives in an enclosure, it must be true that at least one of the enclosures contains more than one animal.
The argument above exhibits a pattern of reasoning that is most closely paralleled by which one of the following?
(A) Every person has two biological parents, so some people who have no brothers or sisters have more parents than their parents have children.
(B) Since every year there are more marriages than divorces, there must be some marriages that will not end in divorce.
(C) Since boys under ten slightly outnumber girls under ten and since some families have more than one child under ten, it follows that at least one girl under ten has more than one brother under ten.
(D) At least one of the families in Herndon has more than one child, since in Herndon, there are fewer families than children and every child is a member of a family.
(E) There must be fewer families that include teenagers than there are teenagers belonging to such families, since there is at least one family that includes more than one teenager.
The argument above exhibits a pattern of reasoning that is most closely paralleled by which one of the following?
(A) Every person has two biological parents, so some people who have no brothers or sisters have more parents than their parents have children.
(B) Since every year there are more marriages than divorces, there must be some marriages that will not end in divorce.
(C) Since boys under ten slightly outnumber girls under ten and since some families have more than one child under ten, it follows that at least one girl under ten has more than one brother under ten.
(D) At least one of the families in Herndon has more than one child, since in Herndon, there are fewer families than children and every child is a member of a family.
(E) There must be fewer families that include teenagers than there are teenagers belonging to such families, since there is at least one family that includes more than one teenager.
07 May 2026, 11:45
Kudos
Bookmarks
Since the zoo has more animals than enclosures, and every animal lives in an enclosure, it must be true that at least one of the enclosures contains more than one animal.
The argument above exhibits a pattern of reasoning that is most closely paralleled by which one of the following?
The argument uses a simple counting principle: if there are more items than containers, and every item is placed in a container, then at least one container must hold more than one item. More animals than enclosures means at least one enclosure has multiple animals.
(A) Every person has two biological parents, so some people who have no brothers or sisters have more parents than their parents have children.
Wrong. This does not use the same “more items than containers” structure.
(B) Since every year there are more marriages than divorces, there must be some marriages that will not end in divorce.
Wrong. This compares events over time, not items assigned to fewer containers.
(C) Since boys under ten slightly outnumber girls under ten and since some families have more than one child under ten, it follows that at least one girl under ten has more than one brother under ten.
Wrong. This adds gender and family structure, but it does not follow from the same counting logic.
(D) At least one of the families in Herndon has more than one child, since in Herndon, there are fewer families than children and every child is a member of a family.
Correct. This exactly matches the structure: more children than families, and every child belongs to a family, so at least one family must have more than one child.
(E) There must be fewer families that include teenagers than there are teenagers belonging to such families, since there is at least one family that includes more than one teenager.
Wrong. This reverses the reasoning. The original uses “more items than containers” to prove that one container has multiple items; this choice uses one container with multiple items to infer a comparison.
Answer: (D)
The argument above exhibits a pattern of reasoning that is most closely paralleled by which one of the following?
The argument uses a simple counting principle: if there are more items than containers, and every item is placed in a container, then at least one container must hold more than one item. More animals than enclosures means at least one enclosure has multiple animals.
(A) Every person has two biological parents, so some people who have no brothers or sisters have more parents than their parents have children.
Wrong. This does not use the same “more items than containers” structure.
(B) Since every year there are more marriages than divorces, there must be some marriages that will not end in divorce.
Wrong. This compares events over time, not items assigned to fewer containers.
(C) Since boys under ten slightly outnumber girls under ten and since some families have more than one child under ten, it follows that at least one girl under ten has more than one brother under ten.
Wrong. This adds gender and family structure, but it does not follow from the same counting logic.
(D) At least one of the families in Herndon has more than one child, since in Herndon, there are fewer families than children and every child is a member of a family.
Correct. This exactly matches the structure: more children than families, and every child belongs to a family, so at least one family must have more than one child.
(E) There must be fewer families that include teenagers than there are teenagers belonging to such families, since there is at least one family that includes more than one teenager.
Wrong. This reverses the reasoning. The original uses “more items than containers” to prove that one container has multiple items; this choice uses one container with multiple items to infer a comparison.
Answer: (D)
17 Jul 2026, 06:40
Kudos
Bookmarks
OE for reference:
Overview:
This argument gives two pieces of information—"the zoo has more animals than enclosures" and "every animal Lives in an enclosure"—as the basis for concluding that "at least one of the enclosures contains more than one animal."
This argument works by establishing that one type of thing (enclosures at the zoo) contains every one of another type of thing (zoo animals) and that there are more of the second type of thing than there are of the first. It concludes that at least one thing of the first type must contain more than one individual of the second type.
The Correct Answer:
D The conclusion of the argument in (D) is that "at least one of the families in Herndon has more than one child." This conclusion is based on two pieces of information: that there are fewer families in Herndon than there are children, and that in Herndon every child is a member of a family. This argument works just like the argument about the zoo, as revealed in the "Overview." It establishes that one type of thing (families in Herndon) contains every one of another type of thing (children in Herndon) and that there are more of the second type of thing than there are of the first. And from this, it concludes that at least one thing of the first type must contain more than one individual of the second type.
The Incorrect Answer Choices:
A The conclusion presented in (A) is that some people who have no brothers or sisters have more parents than their parents have children. In (A), this conclusion is drawn from a single premise, namely that every person has two biological parents. The fact that every person is outnumbered by their biological parents is a crucial element of this argument, and this element has no analogue in the argument about the zoo. This, in itself, is enough to show that the pattern of reasoning in (A) is not parallel. In addition, this argument lacks the crucial features of argument about the zoo, such as a premise asserting that one type of thing contains every one of another type of thing.
B The conclusion presented in (B) is that there must be some marriages that will not end in divorce. (B) presents this conclusion as following from the claim that every year there are more marriages than divorces. Suppose you treat that claim as being parallel to the claim that, in the zoo, there are more animals than enclosures. If you try to extend this parallel to the conclusion in (B), you would end up concluding that there must be at least one divorce that ends more than one marriage. This absurd conclusion is very different from what (B) actually concludes. So the pattern of reasoning in (B) is not parallel to that in the argument about the zoo.
C The conclusion presented in (C) is that at least one girl under ten has more than one brother under ten. (C) presents this conclusion as following from two pieces of information. The first of these—that there are more boys under ten than there are girls under ten—is the only one that could be parallel to the statement that there are more animals at the zoo than enclosures. (Notice that boys under ten would be parallel to animals and girls under ten parallel to enclosures.) The second piece of information—that some families have more than one child under ten—would then have to be parallel to the statement that every animal lives in an enclosure. But this does not work. For one thing, the statement about families is about some families whereas the statement about animals is about all animals. For another, nothing in the argument about the zoo corresponds to the category of "child under ten."
E The conclusion presented in (E) is that there must be fewer families that include teenagers than there are teenagers belonging to such families. In (E), this conclusion is drawn from the premise that there is at least one family that includes more than one teenager. Looking at the argument about the zoo, you can see that neither of that argument's premises—the two pieces of information on which that argument is based—correspond with the premise in (E). You may notice that the premise in (E) is a close match to the conclusion of the argument about the zoo, but this similarity is nothing like a parallel pattern of reasoning.
Overview:
This argument gives two pieces of information—"the zoo has more animals than enclosures" and "every animal Lives in an enclosure"—as the basis for concluding that "at least one of the enclosures contains more than one animal."
This argument works by establishing that one type of thing (enclosures at the zoo) contains every one of another type of thing (zoo animals) and that there are more of the second type of thing than there are of the first. It concludes that at least one thing of the first type must contain more than one individual of the second type.
The Correct Answer:
D The conclusion of the argument in (D) is that "at least one of the families in Herndon has more than one child." This conclusion is based on two pieces of information: that there are fewer families in Herndon than there are children, and that in Herndon every child is a member of a family. This argument works just like the argument about the zoo, as revealed in the "Overview." It establishes that one type of thing (families in Herndon) contains every one of another type of thing (children in Herndon) and that there are more of the second type of thing than there are of the first. And from this, it concludes that at least one thing of the first type must contain more than one individual of the second type.
The Incorrect Answer Choices:
A The conclusion presented in (A) is that some people who have no brothers or sisters have more parents than their parents have children. In (A), this conclusion is drawn from a single premise, namely that every person has two biological parents. The fact that every person is outnumbered by their biological parents is a crucial element of this argument, and this element has no analogue in the argument about the zoo. This, in itself, is enough to show that the pattern of reasoning in (A) is not parallel. In addition, this argument lacks the crucial features of argument about the zoo, such as a premise asserting that one type of thing contains every one of another type of thing.
B The conclusion presented in (B) is that there must be some marriages that will not end in divorce. (B) presents this conclusion as following from the claim that every year there are more marriages than divorces. Suppose you treat that claim as being parallel to the claim that, in the zoo, there are more animals than enclosures. If you try to extend this parallel to the conclusion in (B), you would end up concluding that there must be at least one divorce that ends more than one marriage. This absurd conclusion is very different from what (B) actually concludes. So the pattern of reasoning in (B) is not parallel to that in the argument about the zoo.
C The conclusion presented in (C) is that at least one girl under ten has more than one brother under ten. (C) presents this conclusion as following from two pieces of information. The first of these—that there are more boys under ten than there are girls under ten—is the only one that could be parallel to the statement that there are more animals at the zoo than enclosures. (Notice that boys under ten would be parallel to animals and girls under ten parallel to enclosures.) The second piece of information—that some families have more than one child under ten—would then have to be parallel to the statement that every animal lives in an enclosure. But this does not work. For one thing, the statement about families is about some families whereas the statement about animals is about all animals. For another, nothing in the argument about the zoo corresponds to the category of "child under ten."
E The conclusion presented in (E) is that there must be fewer families that include teenagers than there are teenagers belonging to such families. In (E), this conclusion is drawn from the premise that there is at least one family that includes more than one teenager. Looking at the argument about the zoo, you can see that neither of that argument's premises—the two pieces of information on which that argument is based—correspond with the premise in (E). You may notice that the premise in (E) is a close match to the conclusion of the argument about the zoo, but this similarity is nothing like a parallel pattern of reasoning.
