GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

It is currently 11 Jul 2020, 07:28

Close

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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Unripe lychee fruit contain a compound called hypoglycin, which is poi

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Alum
User avatar
V
Joined: 19 Mar 2012
Posts: 4581
Location: United States (WA)
Concentration: Leadership, General Management
Schools: Ross '20 (M)
GMAT 1: 760 Q50 V42
GMAT 2: 740 Q49 V42 (Online)
GMAT 3: 760 Q50 V42 (Online)
GPA: 3.8
WE: Marketing (Non-Profit and Government)
Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post Updated on: 02 Nov 2018, 05:03
10
44
00:00
A
B
C
D
E

Difficulty:

  75% (hard)

Question Stats:

56% (02:09) correct 44% (02:17) wrong based on 1410 sessions

HideShow timer Statistics

Unripe lychee fruit contain a compound called hypoglycin, which is poisonous in large quantities. No amount of ripe lychee fruit, however, contains enough hypoglycin to harm human health. In response to recent deaths of consumers who ate unripe lychee fruit, scientists have recently developed an alternative type of lychee fruit, called lychee-B, that, ripe or unripe, contains no more hypoglycin than ripened, conventional lychees. Therefore, unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size.

In order for the conclusion to be properly drawn, which of the following must be assumed?


A) Unripe lychee-B fruits do not contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees.

B) Lychee-B fruits are, on average, no bigger than conventional lychee fruits.

C) During the process of ripening, conventional lychee fruits lose a higher proportion of their hypoglycin than do lychee-B fruits.

D) Eating a large number of Lychee-B fruits is not harmful to human health.

E) Consumers who typically enjoy ripened, conventional lychee fruit would be willing to eat unripe lychee-B fruits.

_________________

Originally posted by souvik101990 on 19 Oct 2017, 22:03.
Last edited by Bunuel on 02 Nov 2018, 05:03, edited 1 time in total.
Renamed the topic and edited the question.
Most Helpful Expert Reply
GMAT Club Verbal Expert
User avatar
V
Status: GMAT and GRE tutors
Joined: 13 Aug 2009
Posts: 3573
Location: United States (CO)
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170

GRE 2: Q170 V170
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 18 Nov 2017, 17:54
7
6
Yeah, only the GMAT could take something as tasty as lychee fruit and turn it into a not-so-delicious CR question...

The conclusion of this passage is that "unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size." Let's see how the author arrived at that conclusion.

The first two sentences are pretty straightforward:

  • Unripe lychee fruit contain a compound called hypoglycin.
  • Hypoglycin is poisonous in large quantities. In fact, eating unripe lychee fruit can apparently lead to death.
  • No amount of ripe lychee fruit contains enough hypoglycin to harm human health.

So far we can gather that eating unripe lychee fruit might harm your health (or even kill you) if you eat enough of it, though we can't say exactly how much would be unsafe. On the other hand, you can eat as much RIPE lychee fruit as you want and not be harmed by the hypoglycin. Note that this does not necessarily mean that you can eat as much lychee fruit as you want without suffering other negative consequences. All we know for sure is that doing so would not expose you to harm from the hypoglycin.

In response to recent deaths of consumers who ate unripe lychee fruit, scientists developed lychee-B, which, ripe or unripe, contains no more hypoglycin than ripened, conventional lychees. Since lychee-B contains no more hypoglycin than ripened, conventional lychees, we can conclude that you could eat as much ripe OR unripe lychee-B as you want without being harmed by the hypoglycin. As with ripened, conventional lychees, that doesn't mean that you won't suffer OTHER negative consequences from eating lychee-B all day long, but you certainly won't be harmed by the hypoglycin.

Based on this information, the author of the passage concludes that: "unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size." In order for that conclusion to be properly drawn, which of the following must be assumed?

Quote:
A) Unripe lychee-B fruits do not contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees.

Without this assumption, it is possible that unripe lychee-B fruits contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees. The information in the passage tells us that if we only consider hypoglycin, lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size. But if lychee-B contains higher quantities of OTHER poisonous substances besides hypoglycin, then lychee-B might be less safe overall than conventional, ripened lychees. Thus, choice (A) looks like a required assumption, so hang on to it.

Quote:
B) Lychee-B fruits are, on average, no bigger than conventional lychee fruits.

The conclusion specifically tells us that we are comparing lychee-B fruits to conventional lychees OF THE SAME SIZE. So even if lychee-B fruits are bigger on average, this would not impact the conclusion. Choice (B) can be eliminated.

Quote:
C) During the process of ripening, conventional lychee fruits lose a higher proportion of their hypoglycin than do lychee-B fruits.

The conclusion compares UNRIPE lychee-B to RIPENED conventional fruits. It makes no difference how much hypoglycin was in the ripened conventional fruit prior to ripening OR how much hypoglycin is lost by a lychee-B during the ripening process. Since we are told that lychee-B, ripe or unripe, contains no more hypoglycin than ripened, conventional lychees, the conclusion is possible, with or without this assumption. Eliminate (C).

Quote:
D) Eating a large number of Lychee-B fruits is not harmful to human health.

As stated above, it is possible that eating a large number of conventional lychee fruits OR a large number of lychee-B fruits is harmful to human health. Choice (D) does not tell us WHICH type is more harmful or how much of each would have to be eaten to cause harmful effects. Thus, it is still possible that unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size. Eliminate (D).

Quote:
E) Consumers who typically enjoy ripened, conventional lychee fruit would be willing to eat unripe lychee-B fruits.

The conclusion of the passage has nothing to do with whether consumers would actually be willing to eat unripe lychee-B fruits. The conclusion simply states that unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size. Even if lychee-B fruits were completely tasteless and nobody wants to eat them, the conclusion of the passage would not be impacted. Eliminate (E).

Choice (A) is the best answer.
_________________
GMAT/GRE tutors @ www.gmatninja.com (we're hiring!) | GMAT Club Verbal Expert | YouTube | Blog | Bad at PMs

Beginners' guides to GMAT verbal: RC | CR | SC

YouTube LIVE verbal webinars: all videos by topic

SC articles & resources: How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

RC, CR, and other articles & resources: All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for $29.99 | Time management on verbal

SC & CR Questions of the Day (QOTDs), featuring expert explanations: All QOTDs | Subscribe via email | RSS

Need an expert reply? Hit the request verbal experts' reply button; be specific about your question, and tag @GMATNinja. Priority is always given to official GMAT questions.
General Discussion
Retired Moderator
User avatar
V
Status: Preparing for GMAT
Joined: 25 Nov 2015
Posts: 1039
Location: India
GPA: 3.64
GMAT ToolKit User Reviews Badge
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 20 Oct 2017, 02:23
IMO answer is B.
B) Lychee-B fruits are, on average, no bigger than conventional lychee fruits.
If average size of lychee-B is more than conventional lychee fruits, the argument falls apart. Then lychee-B will contain more hypoglycin than conventional lychees.

Please give kudos, if u liked my post!
Intern
Intern
avatar
B
Joined: 14 Sep 2015
Posts: 8
Location: India
GMAT 1: 720 Q49 V39
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 20 Oct 2017, 21:44
4
A) Unripe lychee-B fruits do not contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees.
CORRECT. Negate this answer choice: "Unripe lychee-B fruits DO contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees." , argument breaks down, the new kind of lychee will definitely NOT be as safe for consumption as the old type.

B) Lychee-B fruits are, on average, no bigger than conventional lychee fruits.
Take a look at the last part of the last sentence in the argument, we are comparing lychees of similar size. Hence, the size issue disappears.

C) During the process of ripening, conventional lychee fruits lose a higher proportion of their hypoglycin than do lychee-B fruits.
Proportion is irrelevant. Final outcome is that Lychee B has lower hypoglycin than the conventional lychee.

D) Eating a large number of Lychee-B fruits is not harmful to human health.
Already established.

E) Consumers who typically enjoy ripened, conventional lychee fruit would be willing to eat unripe lychee-B fruits.
Irrelevant. We aren't testing "willingness" here, we are testing safety.
Current Student
User avatar
S
Joined: 08 Jun 2015
Posts: 405
Location: India
GMAT 1: 640 Q48 V29
GMAT 2: 700 Q48 V38
GPA: 3.33
Reviews Badge
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 23 Oct 2017, 02:04
1
+1 for A. This one was a tough one phew !! . My take :

Premise : Unripe lychee contains a certain amount of poisonous substance which ripe lychee does not. To overcome this problem , scientists have developed a new variant of lychee that does not contain this poisonous substance whether it is ripe or not.

Conclusion : Unripe variant is at least as safe as ripe lychee of same size.

Prethink : This is an assumption type question. What if the variant contains some other poisonous substance ? The conclusion compares fruits of the same size. So any option that does talks about the size of fruit will not be correct.

POE :

Option a : On the lines of our pre-think. Satisfies the negation test as well.
Option b : We are comparing fruits of the same size.
Option c : Irrelevant.
Option d : Stated already.
Option e : Irrelevant.

Hence by POE , option A is the correct answer.
_________________
" The few , the fearless "
Manager
Manager
avatar
S
Joined: 12 Feb 2015
Posts: 112
Location: India
Concentration: Technology, Operations
GMAT 1: 680 Q50 V31
GPA: 3.9
WE: Information Technology (Computer Software)
GMAT ToolKit User
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 23 Oct 2017, 04:16
1
souvik101990 wrote:
Unripe lychee fruit contain a compound called hypoglycin, which is poisonous in large quantities. No amount of ripe lychee fruit, however, contains enough hypoglycin to harm human health. In response to recent deaths of consumers who ate unripe lychee fruit, scientists have recently developed an alternative type of lychee fruit, called lychee-B, that, ripe or unripe, contains no more hypoglycin than ripened, conventional lychees. Therefore, unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size.

In order for the conclusion to be properly drawn, which of the following must be assumed?

A) Unripe lychee-B fruits do not contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees.
Correct: This option, if negated, gives a reason to say that lychee-B fruits aren't safe to eat. This distorts the conclusion.

B) Lychee-B fruits are, on average, no bigger than conventional lychee fruits.
Irrelevant. Size has no bearing ass it has already been mentioned that "unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size"

C) During the process of ripening, conventional lychee fruits lose a higher proportion of their hypoglycin than do lychee-B fruits.
Irrelevant. This has already been established that "lychee-B, that, ripe or unripe, contains no more hypoglycin than ripened, conventional lychees"

D) Eating a large number of Lychee-B fruits is not harmful to human health.
Extreme.

E) Consumers who typically enjoy ripened, conventional lychee fruit would be willing to eat unripe lychee-B fruits.
Irrelevant: Choice of customers has no bearing. The conclusion is whether the fruits are safe or not.


========Please hit Kudos if my reply helped you. ===============
Moderator
User avatar
V
Joined: 28 Mar 2017
Posts: 1194
Location: India
GMAT 1: 730 Q49 V41
GPA: 4
CAT Tests
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 25 Oct 2017, 07:59
Unripe lychee fruit contain a compound called hypoglycin, which is poisonous in large quantities. No amount of ripe lychee fruit, however, contains enough hypoglycin to harm human health. In response to recent deaths of consumers who ate unripe lychee fruit, scientists have recently developed an alternative type of lychee fruit, called lychee-B, that, ripe or unripe, contains no more hypoglycin than ripened, conventional lychees. Therefore, unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size.

In order for the conclusion to be properly drawn, which of the following must be assumed?

A) Unripe lychee-B fruits do not contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees. -Lets hold on to this one. It looks good.

B) Lychee-B fruits are, on average, no bigger than conventional lychee fruits. -We are not worried about the size of the fruits.

C) During the process of ripening, conventional lychee fruits lose a higher proportion of their hypoglycin than do lychee-B fruits. -Even if the conventional fruit doesn't loose more hypoglycin the fact that artificial fruit is less harmful than the conventional fruit doesn't change.

D) Eating a large number of Lychee-B fruits is not harmful to human health. -"large number" is exaggerating the option.

E) Consumers who typically enjoy ripened, conventional lychee fruit would be willing to eat unripe lychee-B fruits. -We are not worried about the enjoyment of customers
Intern
Intern
avatar
B
Joined: 01 Aug 2016
Posts: 8
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 01 Jun 2020, 16:01
Hello,

I am lost at the new information in the answer choice "A." The question stated the only poison as the "Hypo" and the answer now has a poison to the prompt. While I agree more poison would become an issue, is the trap the prompt mentioned the size of the fruit?
thank you in advance.
Intern
Intern
User avatar
B
Joined: 06 May 2020
Posts: 37
Location: India
Schools: HEC '22
Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 08 Jun 2020, 02:32
souvik101990 wrote:
Unripe lychee fruit contain a compound called hypoglycin, which is poisonous in large quantities. No amount of ripe lychee fruit, however, contains enough hypoglycin to harm human health. In response to recent deaths of consumers who ate unripe lychee fruit, scientists have recently developed an alternative type of lychee fruit, called lychee-B, that, ripe or unripe, contains no more hypoglycin than ripened, conventional lychees. Therefore, unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size.

In order for the conclusion to be properly drawn, which of the following must be assumed?


A) Unripe lychee-B fruits do not contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees.

B) Lychee-B fruits are, on average, no bigger than conventional lychee fruits.

C) During the process of ripening, conventional lychee fruits lose a higher proportion of their hypoglycin than do lychee-B fruits.

D) Eating a large number of Lychee-B fruits is not harmful to human health.

E) Consumers who typically enjoy ripened, conventional lychee fruit would be willing to eat unripe lychee-B fruits.



Lets make it EAAASY !
Pro tip: Find fault with options on GMAT. Learn blaming it for obvious reasons you find. It helps alot :tongue_opt3



Q.Type: Assumption
Pre-Think: Something that supports conclusion(unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size
.)

A)Ok it somewhat strengthen's >> when there's no other poison in fruit it supports conclusion. And negating this weakens arguement. So hopefully this may be our answer.

B)What if they are big ? irrelevant

C)Ok so ? It isn't effecting our conclusion as much as A did. N negating this doesn't effect our carguement.

D) May not be. It may still be safer than Conventional lychee.

E) Even if they didn't enjoy it still might be safer to eat conventional lychee.


Therefore OA:A



_________________
Never do restricted things..(knowingly or unknowingly).
READ the rules of FORUM before doing anything.


You will regret later. What's the point of doing it.. if the purpose of doing it only gives pain rather than pleasure as expected.

Started a all-new journey to 780
GMAT Club Verbal Expert
User avatar
V
Status: GMAT and GRE tutors
Joined: 13 Aug 2009
Posts: 3573
Location: United States (CO)
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170

GRE 2: Q170 V170
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 19 Jun 2020, 15:57
1
Jordon wrote:
Hello,

I am lost at the new information in the answer choice "A." The question stated the only poison as the "Hypo" and the answer now has a poison to the prompt. While I agree more poison would become an issue, is the trap the prompt mentioned the size of the fruit?
thank you in advance.

There is no trap in this question, it's just a case of working your way through the answer choices, eliminating options that don't satisfy the question.

We've done a full question breakdown here but in answer to your question, let's take another look at (A):
Quote:
A) Unripe lychee-B fruits do not contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees.

This answer choice is not saying that more poison would become an issue. Without this assumption, it's that it would be possible for lychee-B fruits to have other kinds of poison in greater quantities than ripened, conventional lychees.

If lychee-B fruits could have greater quantities of other poisons then they would not be as safe as conventional lychees of the same size. Therefore, (A) is an assumption required to properly draw the conclusion -- (A) is our answer.

The passage saying that unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size is not a trap. The size of the fruit is mentioned to standardize the discussion -- it's possible for an enormous, unripe lychee-B to have more hypoglycin than a small, ripened standard lychee but this isn't a fair comparison. (A) doesn't mention size but this doesn't make it a trap.

I hope that helps!
_________________
GMAT/GRE tutors @ www.gmatninja.com (we're hiring!) | GMAT Club Verbal Expert | YouTube | Blog | Bad at PMs

Beginners' guides to GMAT verbal: RC | CR | SC

YouTube LIVE verbal webinars: all videos by topic

SC articles & resources: How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

RC, CR, and other articles & resources: All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for $29.99 | Time management on verbal

SC & CR Questions of the Day (QOTDs), featuring expert explanations: All QOTDs | Subscribe via email | RSS

Need an expert reply? Hit the request verbal experts' reply button; be specific about your question, and tag @GMATNinja. Priority is always given to official GMAT questions.
Director
Director
avatar
G
Joined: 05 Jan 2019
Posts: 557
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi  [#permalink]

Show Tags

New post 19 Jun 2020, 19:00
Type: Find the assumption

Conclusion: unripe lychee-B fruits are at least as safe to eat as ripened, conventional lychees of the same size.


A) Unripe lychee-B fruits do not contain more arsenic, oxalic acid, or other poisonous substances than do ripened, conventional lychees. - the passage proceeds to equate unripe Lychee-B fruits to ripened conventional lychees in terms of safety of consumption. (A) rules out the possibility that the Unripe Lychee-B fruit may contain greater quantities of other poisonous substances than those contained in ripened conventional lychees. This, combined with the information from the passage, reinforces the conclusion that unripe lychee-B fruits are at least as safe to consume as ripened conventional lychees. Thus, (A) is the assumption that is required to establish the conclusion. Therefore, (A) is the right answer choice.

B) Lychee-B fruits are, on average, no bigger than conventional lychee fruits.
- does not help us establish the conclusion.

C) During the process of ripening, conventional lychee fruits lose a higher proportion of their hypoglycin than do lychee-B fruits.
- the conclusion deals with ''Unripe lychee-B fruits'', not ''Ripe Lychee-B fruits''.

D) Eating a large number of Lychee-B fruits is not harmful to human health.
- the passage only mentions that Lychee-B fruits contain no more hypoglycin than ripened, conventional lychees (note that this does not mean that Lychee-B fruits are completely free from hypoglycin). Hence, it is still possible that when consumed in large quantities, Lychee-B fruits can still cause significant damage

E) Consumers who typically enjoy ripened, conventional lychee fruit would be willing to eat unripe lychee-B fruits.
- irrelevant to the conclusion.
GMAT Club Bot
Re: Unripe lychee fruit contain a compound called hypoglycin, which is poi   [#permalink] 19 Jun 2020, 19:00

Unripe lychee fruit contain a compound called hypoglycin, which is poi

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





cron

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne