Find all School-related info fast with the new School-Specific MBA Forum

It is currently 22 Aug 2014, 03:49

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

A certain bread recipe calls for wheat, white flour, and oat

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 19 Jul 2009
Posts: 53
Location: baltimore, md
Schools: kellogg, booth, stern, ann arbor
Followers: 1

Kudos [?]: 17 [0], given: 3

A certain bread recipe calls for wheat, white flour, and oat [#permalink] New post 29 Oct 2010, 10:08
1
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

63% (02:13) correct 37% (01:14) wrong based on 122 sessions
A certain bread recipe calls for wheat, white flour, and oats in the ratio of 3:2:1. How many cups of oats are needed to make a loaf of bread?

(1) a total of 30 cups of wheat and white flour are needed to make 3 loaves of bread.
(2) two more cups of wheat than white flour are needed for every loaf.
[Reveal] Spoiler: OA

_________________

Paaaaayyy Meeeee!!!!!

Expert Post
1 KUDOS received
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 19045
Followers: 3367

Kudos [?]: 24493 [1] , given: 2680

Re: Ratio Data Sufficiency [#permalink] New post 29 Oct 2010, 10:33
1
This post received
KUDOS
Expert's post
1
This post was
BOOKMARKED
azule45 wrote:
a certain bread recipe calls for wheat, white flour, and oats in the ratio of 3:2:1. How many cups of oats are needed to make a loaf of bread?

I. a total of 30 cups of wheat and white flour are needed to make 3 loaves of bread.
II. two more cups of wheat than white flour are needed for every loaf.


Given: \frac{wheat}{\frac{white}{oats}}=\frac{3x}{\frac{2x}{x}}, where x is some multiple to get 1 loaf of bread (so for 1 loaf of bread 3x cups of wheat flour, 2x cups of white flour and x cups of oats flour are needed). Question: x=?

(1) A total of 30 cups of wheat and white flour are needed to make 3 loaves of bread --> so for one loaf of bread 30/3=10 cups of wheat and white flour are needed --> 3x+2x=10 --> x=2. Sufficient.

(2) Two more cups of wheat than white flour are needed for every loaf --> 3x=2x+2 --> x=2. Sufficient.

Answer: D.
_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Intern
Intern
avatar
Joined: 28 Dec 2010
Posts: 6
Followers: 0

Kudos [?]: 0 [0], given: 2

A certain bread recipe calls for whole wheat flour.. [#permalink] New post 10 Feb 2011, 21:55
A certain bread recipe calls for whole wheat flour, white flour, & oat flour in the ratio of 3:2:1, respectively. How many cups of oat flour are needed to make a loaf of bread?

1) A total of 30 cups of whole wheat and white flour are needed to make 3 loafs of bread.

2) Two more cups of whole wheat flour than white flour are needed for every loaf.
Intern
Intern
avatar
Joined: 28 Dec 2010
Posts: 6
Followers: 0

Kudos [?]: 0 [0], given: 2

A certain bread recipe calls for whole wheat flour.. [#permalink] New post 10 Feb 2011, 21:55
A certain bread recipe calls for whole wheat flour, white flour, & oat flour in the ratio of 3:2:1, respectively. How many cups of oat flour are needed to make a loaf of bread?

1) A total of 30 cups of whole wheat and white flour are needed to make 3 loafs of bread.

2) Two more cups of whole wheat flour than white flour are needed for every loaf.
1 KUDOS received
Manager
Manager
avatar
Joined: 30 Aug 2010
Posts: 93
Location: Bangalore, India
Followers: 3

Kudos [?]: 98 [1] , given: 27

Re: A certain bread recipe calls for whole wheat flour.. [#permalink] New post 10 Feb 2011, 23:59
1
This post received
KUDOS
gary391 wrote:
A certain bread recipe calls for whole wheat flour, white flour, & oat flour in the ratio of 3:2:1, respectively. How many cups of oat flour are needed to make a loaf of bread?

1) A total of 30 cups of whole wheat and white flour are needed to make 3 loafs of bread.

2) Two more cups of whole wheat flour than white flour are needed for every loaf.


flours required (in # of cups) are in the ratio 3:2:1
hence we can safely write the amounts (in # of cups) required as 3x, 2x, x
Asked: what is x (i.e. the # of cups of oat flour required)

stmnt1:
30 cups for 3 loafs
==> 10 cups for 1 loaf
==> 3x+2x = 10
==> x=2
Sufficient

stmnt2:
3x=2x+2
==>x=2
Sufficient

Answer D.

Regards,
Murali.

Kudos?
Expert Post
1 KUDOS received
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 19045
Followers: 3367

Kudos [?]: 24493 [1] , given: 2680

Re: A certain bread recipe calls for whole wheat flour.. [#permalink] New post 11 Feb 2011, 02:17
1
This post received
KUDOS
Expert's post
Intern
Intern
avatar
Joined: 28 Dec 2010
Posts: 6
Followers: 0

Kudos [?]: 0 [0], given: 2

Re: A certain bread recipe calls for whole wheat flour.. [#permalink] New post 11 Feb 2011, 07:26
Thanks Murali, for the reply. I was searching for similar problems on Ratio DS- A came across another way of looking at this problem:
Stmnt1: From the question Stmnt 1 - we have a linear equation in one variable - Hence we can have a solution =>Sufficient
Stment2: From the question Stmnt 2- we have a linear equation in one variable - Hence we can have a solution =>Sufficient

Hence, the problem can be solved without doing any math.

Thanks,
Gary

muralimba wrote:
gary391 wrote:
A certain bread recipe calls for whole wheat flour, white flour, & oat flour in the ratio of 3:2:1, respectively. How many cups of oat flour are needed to make a loaf of bread?

1) A total of 30 cups of whole wheat and white flour are needed to make 3 loafs of bread.

2) Two more cups of whole wheat flour than white flour are needed for every loaf.


flours required (in # of cups) are in the ratio 3:2:1
hence we can safely write the amounts (in # of cups) required as 3x, 2x, x
Asked: what is x (i.e. the # of cups of oat flour required)

stmnt1:
30 cups for 3 loafs
==> 10 cups for 1 loaf
==> 3x+2x = 10
==> x=2
Sufficient

stmnt2:
3x=2x+2
==>x=2
Sufficient

Answer D.

Regards,
Murali.

Kudos?
Manager
Manager
avatar
Joined: 05 Jul 2010
Posts: 205
Followers: 1

Kudos [?]: 10 [0], given: 18

GMAT Tests User
Re: Ratio Data Sufficiency [#permalink] New post 12 Feb 2011, 13:10
1 Was easy, but for 2 it is saying 2 more cups, at first it might come as since it is a ratio you never know if we can find absolute value. but the values of 6 and 4 is the only time when the absolute value is the difference of 2 between the wheat and white flour.
Manager
Manager
avatar
Joined: 28 Jul 2011
Posts: 114
Followers: 0

Kudos [?]: 1 [0], given: 6

GMAT Tests User
Re: Ratio Data Sufficiency [#permalink] New post 04 Nov 2011, 07:09
Nice questions. thanks
Re: Ratio Data Sufficiency   [#permalink] 04 Nov 2011, 07:09
    Similar topics Author Replies Last post
Similar
Topics:
1 Experts publish their posts in the topic The ratio of flour to water to sugar in a recipe is 7:4:1. 3111987 4 21 Jan 2014, 14:10
Experts publish their posts in the topic A recipe requires 2 1/2 cups of flour 2 3/4 cups of sugar clciotola 6 17 May 2013, 07:03
Experts publish their posts in the topic A certain bakery only sells bread. It sells bread at a macjas 3 27 May 2012, 08:55
2 Experts publish their posts in the topic A certain bread recipe calls for whole wheat flour, white damham17 2 15 Mar 2012, 18:22
Wheat has more nutritional value than rye. But since oats saurya_s 4 01 Feb 2005, 07:28
Display posts from previous: Sort by

A certain bread recipe calls for wheat, white flour, and oat

  Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group and phpBB SEO

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®.