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

It is currently 19 Sep 2018, 17:39

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: 14
One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

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

Difficulty:

  25% (medium)

Question Stats:

72% (01:11) correct 28% (01:25) wrong based on 451 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: 159
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: 264
Location: Motortown
Re: vitamin  [#permalink]

Show Tags

New post 10 Oct 2008, 14:30
2
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: 1731
GMAT ToolKit User Premium Member
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
VP
VP
User avatar
Joined: 30 Jun 2008
Posts: 1002
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: 106
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: 297
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: 56
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: 49251
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.
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Manager
Manager
avatar
Joined: 28 May 2014
Posts: 56
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: 1835
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: 4020
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
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: 87
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: 4020
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
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: 87
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
P
Joined: 16 Oct 2010
Posts: 8281
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 >

GMAT self-study has never been more personalized or more fun. Try ORION Free!

Manager
Manager
avatar
Joined: 12 Sep 2015
Posts: 87
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: 759
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"
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 8095
Premium Member
Re: One gram of a certain health food contains 7 percent of the  [#permalink]

Show Tags

New post 27 Jun 2018, 22:46
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Re: One gram of a certain health food contains 7 percent of the &nbs [#permalink] 27 Jun 2018, 22:46
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  

Events & Promotions

PREV
NEXT


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®.