GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 22 May 2019, 03:54

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

One gram of a certain health food contains 7 percent of the

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

Hide Tags

 
Intern
Intern
avatar
Joined: 10 Oct 2008
Posts: 12
One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 10 Oct 2008, 13:07
1
17
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

74% (01:30) correct 27% (01:55) wrong based on 400 sessions

HideShow timer Statistics

One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

A. 3
B. 7
C. 10
D. 14
E. 33
Manager
Manager
avatar
Joined: 15 Apr 2008
Posts: 151
Re: vitamin  [#permalink]

Show Tags

New post 10 Oct 2008, 13:41
2
i think i have not understood the question.

shouldn't the question give the minimum daily requirement of both the vitamins also, or AM I JUST CONFUSED?
Senior Manager
Senior Manager
User avatar
Joined: 21 Apr 2008
Posts: 256
Location: Motortown
Re: vitamin  [#permalink]

Show Tags

New post 10 Oct 2008, 14:30
3
E

You get only 3% Vitamin A from 1 gram and 7% Vitamin E from 1 gram, and since the questions requires minimum amount to get 100% both vitamins, we need to focus on Vitamin A

1 gram - 3%
x gram - 100%
x = 33.3

Answer E will only give 99% of daily reaquirements though :?:
Retired Moderator
User avatar
B
Joined: 05 Jul 2006
Posts: 1700
GMAT ToolKit User
Re: vitamin  [#permalink]

Show Tags

New post 10 Oct 2008, 17:21
1
chenhong1224 wrote:
One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

A. 3
B. 7
C. 10
D. 14
E. 33




IF IT COVERS 100% OF A then i covers both
E is the answer

100/3 = 33.333
Director
Director
User avatar
Joined: 30 Jun 2008
Posts: 968
Re: vitamin  [#permalink]

Show Tags

New post 10 Oct 2008, 20:30
1
chenhong1224 wrote:
One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

A. 3
B. 7
C. 10
D. 14
E. 33


1gm = 7E + 3A
2 gm = 2(7E + 3A) = 14E + 6A and so on ...

Now we need 100 E and 100 A daily.

If I eat one gram I will get only 7E and 3A. But I have no other source of E and A.

To get 100 A i will need to eat bit more than 33g of the supplement. because 33*3 =99

We need approx answer only. So answer is E
_________________
"You have to find it. No one else can find it for you." - Bjorn Borg
Manager
Manager
avatar
Joined: 06 Jul 2011
Posts: 86
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 18 May 2013, 12:07
Where does the question say what the minimum daily requirement is?
Senior Manager
Senior Manager
User avatar
Joined: 28 Apr 2012
Posts: 275
Location: India
Concentration: Finance, Technology
GMAT 1: 650 Q48 V31
GMAT 2: 770 Q50 V47
WE: Information Technology (Computer Software)
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 19 May 2013, 00:37
1
arkle wrote:
Where does the question say what the minimum daily requirement is?



The question says.. 1 gram of the food has 7% of minimum daily requirement for Vit E and 3% of Vit A.

And asks to find - how much of the food you need for 100% of E and 100% of A daily requirement.
_________________
"Appreciation is a wonderful thing. It makes what is excellent in others belong to us as well."
― Voltaire


Press Kudos, if I have helped.
Thanks!
Manager
Manager
avatar
Joined: 28 May 2014
Posts: 52
Schools: NTU '16
GMAT 1: 620 Q49 V27
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 28 Jul 2014, 09:51
The questions asks for minimum daily requirement of both vitamins and not minimum amount to get 100% both vitamins. I added 3 and 7 and opted answer as 10. Can you please tell me where I am going wrong? I didnt understand why we are calculating for 100%. Thanks
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 55228
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 28 Jul 2014, 10:03
3
sri30kanth wrote:
One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

A. 3
B. 7
C. 10
D. 14
E. 33

The questions asks for minimum daily requirement of both vitamins and not minimum amount to get 100% both vitamins. I added 3 and 7 and opted answer as 10. Can you please tell me where I am going wrong? I didnt understand why we are calculating for 100%. Thanks


No, the question asks exactly that.

1 gram of the food contains 7% of the minimum daily requirement of vitamin E and 3% of the minimum daily requirement of vitamin A.

So, 1 gram of the food is not enough to provide daily requirement of both vitamins, it provides only 7% of E and 3% of A.

How many grams of the food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

So, how many grams of the food must be eaten to provide at least 100% of E and A.
_________________
Manager
Manager
avatar
Joined: 28 May 2014
Posts: 52
Schools: NTU '16
GMAT 1: 620 Q49 V27
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 28 Jul 2014, 10:13
Got it. Thanks a lot Bunuel
SVP
SVP
User avatar
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1812
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 31 Jul 2014, 23:40
1
Least quantity contained is Vitamin E = 3%

Minimum consumption \(= \frac{100}{3} = 33\)

Answer = E
_________________
Kindly press "+1 Kudos" to appreciate :)
Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4470
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User CAT Tests
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 06 Nov 2015, 10:17
1
1
chenhong1224 wrote:
One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

A. 3
B. 7
C. 10
D. 14
E. 33


7% of total daily requirement of vitamin E = 1gm of a certain health food
1% of total daily requirement of vitamin E = 0.14 (100/7 )gm of a certain health food
100% of total daily requirement of vitamin E = 14.28 gm of a certain health food

Thus 14.28gm of certain health food is required for the mminimum daily requirement of Vtamin E.

What amout vitamin B ?

3% of total daily requirement of vitamin A = 1gm of a certain health food
1% of total daily requirement of vitamin A = 0.33 (100/3 )gm of a certain health food
100% of total daily requirement of vitamin A = 33.33 gm of a certain health food

So, 33.33gm of the certain health food is required for maintaining the minimum daily requirement of Vitamin A.

14gm of certain health food is required for the mminimum daily requirement of Vtamin E & 33.33gm of the certain health food is required for maintaining the minimum daily requirement of Vitamin A.

If the person takes 33 gms of a certain health food then it will fulfil his daily requirement of both Vitamin A and Vitamiin E.


Hence the correct answer is (E) !!
_________________
Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )
Manager
Manager
avatar
Joined: 12 Sep 2015
Posts: 75
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 14 Feb 2016, 09:48
Guys,

wouldn't 34 grams fulfil the minimum requirement ass 33 would only account 99%? Confused.
Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4470
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User CAT Tests
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 14 Feb 2016, 10:51
MrSobe17 wrote:
Guys,

wouldn't 34 grams fulfil the minimum requirement ass 33 would only account 99%? Confused.


Please provide the detailed calculation how you are getting 33 gms as 99% for us to enable to comment on the issue !!
_________________
Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )
Manager
Manager
avatar
Joined: 12 Sep 2015
Posts: 75
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 14 Feb 2016, 10:58
Heb Abhishek,

sure. One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. So in each gram, there is 0.07 grams of vitamin E and 0.03 grams of vitamin A. As per my understanding of this question, we must consume at least 1 gram of each vitamin. To consumer at least 1 gram of vitamin A, we would need to consumer 34 grams of a certain health food: 34 * 0.03 = 1.02 grams. 1 gram less of healthy food would only account to 0.99 grams.

Same idea in percentage points: 3% * 33 = 99%, so 1% is missing. Hence, one gram more.

Apparently I am missing some key info.

Thank you for your response!
Veritas Prep GMAT Instructor
User avatar
D
Joined: 16 Oct 2010
Posts: 9232
Location: Pune, India
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 14 Feb 2016, 23:07
4
MrSobe17 wrote:
Guys,

wouldn't 34 grams fulfil the minimum requirement ass 33 would only account 99%? Confused.



Yes, 33 would only account for 99%. For the other 1%, we need another 1/3 gms.

So the actual answer would be 33(1/3).

Now look at the question again:
"approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins"

You are looking for an approximate value of 33(1/3) gms. That approximate value could be 33 gms.

Hence answer (E)
_________________
Karishma
Veritas Prep GMAT Instructor

Learn more about how Veritas Prep can help you achieve a great GMAT score by checking out their GMAT Prep Options >
Manager
Manager
avatar
Joined: 12 Sep 2015
Posts: 75
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 15 Feb 2016, 02:52
Helpful Karishma as always.

Thanks!
Director
Director
avatar
S
Joined: 12 Nov 2016
Posts: 725
Location: United States
Schools: Yale '18
GMAT 1: 650 Q43 V37
GRE 1: Q157 V158
GPA: 2.66
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 23 Jun 2017, 18:43
chenhong1224 wrote:
One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

A. 3
B. 7
C. 10
D. 14
E. 33


It's a bit of a weird question but anyways- what the question is really asking is at what quantity of this certain health food would the daily requirement for both vitamin E and vitamin A be satisfied- it doesn't matter if one vitamin is superfluous rather it just matters that the quantity provided provides 100 percent of each vitamin- so pick a simple value

100(.07) =.07
100(.03)= .03

33000(.07) =241 percent of vitamin E...damn mate
33000(.03)=99 percent of vitamin A- this is close enough

Thus
"E"
Target Test Prep Representative
User avatar
D
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 6200
Location: United States (CA)
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 01 Mar 2019, 10:55
chenhong1224 wrote:
One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

A. 3
B. 7
C. 10
D. 14
E. 33


Since it will take more grams to get the 3 percent requirement, we can focus just on the number of grams that must be consumed to get the minimum daily requirement of vitamin A. Thus:

0.03n = 1

n = 1/0.03 = 100/3 = 33.33

Answer: E
_________________

Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
TTP - Target Test Prep Logo
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

GMAT Club Bot
Re: One gram of a certain health food contains 7 percent of the   [#permalink] 01 Mar 2019, 10:55
Display posts from previous: Sort by

One gram of a certain health food contains 7 percent of the

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.