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

It is currently 23 Oct 2018, 16:08

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

At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin

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

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 50058
At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin  [#permalink]

Show Tags

New post 11 Mar 2018, 21:02
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

93% (01:02) correct 7% (00:42) wrong based on 39 sessions

HideShow timer Statistics

At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin cookies sell for $1.00. If Paul buys 18 chocolate chip cookies and 12 oatmeal raisin cookies, what is the average price he pays per cookie?

A. $1.20
B. $1.40
C. $1.50
D. $1.60
E. $2.00

_________________

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

BSchool Forum Moderator
User avatar
G
Joined: 07 Jan 2016
Posts: 781
Location: India
GMAT 1: 710 Q49 V36
Reviews Badge
Re: At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin  [#permalink]

Show Tags

New post 12 Mar 2018, 00:18
Bunuel wrote:
At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin cookies sell for $1.00. If Paul buys 18 chocolate chip cookies and 12 oatmeal raisin cookies, what is the average price he pays per cookie?

A. $1.20
B. $1.40
C. $1.50
D. $1.60
E. $2.00

total cookies bought = 30

cc cookie = 2 i.e 2x18 = 36$
om cookie = 1 1x12 = 12

total = 48

avg = 48/30 = 1.6
Senior PS Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 3207
Location: India
GPA: 3.12
Premium Member CAT Tests
At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin  [#permalink]

Show Tags

New post 12 Mar 2018, 00:40
Bunuel wrote:
At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin cookies sell for $1.00. If Paul buys 18 chocolate chip cookies and 12 oatmeal raisin cookies, what is the average price he pays per cookie?

A. $1.20
B. $1.40
C. $1.50
D. $1.60
E. $2.00


Since the proportion of chocolate chip cookies to oatmeal raisin cookies is 3:2,
we can calculate the average price for a cookie to be \(\frac{3*2 + 2*1.5}{5} = \frac{5 + 3}{5} = $1.6\)(Option D)

P.S This concept of bringing down the numbers to proportions can be really useful
when the numbers are bigger!
_________________

You've got what it takes, but it will take everything you've got

Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4110
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Re: At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin  [#permalink]

Show Tags

New post 12 Mar 2018, 11:38
1
Bunuel wrote:
At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin cookies sell for $1.00. If Paul buys 18 chocolate chip cookies and 12 oatmeal raisin cookies, what is the average price he pays per cookie?

A. $1.20
B. $1.40
C. $1.50
D. $1.60
E. $2.00


\(\frac{2*18 + 1*12}{18 + 12}\)

= \(1.60\), Answer will be (D)
_________________

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 )

PS Forum Moderator
User avatar
P
Joined: 16 Sep 2016
Posts: 314
GMAT 1: 740 Q50 V40
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Re: At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin  [#permalink]

Show Tags

New post 12 Mar 2018, 12:53
pushpitkc wrote:
Bunuel wrote:
At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin cookies sell for $1.00. If Paul buys 18 chocolate chip cookies and 12 oatmeal raisin cookies, what is the average price he pays per cookie?

A. $1.20
B. $1.40
C. $1.50
D. $1.60
E. $2.00


Since the proportion of chocolate chip cookies to oatmeal raisin cookies is 3:2,
we can calculate the average price for a cookie to be \(\frac{3*2 + 2*1.5}{5} = \frac{5 + 3}{5} = $1.6\)(Option D)

P.S This concept of bringing down the numbers to proportions can be really useful
when the numbers are bigger!


take the weighted average of the two prices to find the average price of cookie!

Nice solution. +1 Kudos to you sir.
Target Test Prep Representative
User avatar
P
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 3906
Location: United States (CA)
Re: At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin  [#permalink]

Show Tags

New post 13 Mar 2018, 17:03
Bunuel wrote:
At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin cookies sell for $1.00. If Paul buys 18 chocolate chip cookies and 12 oatmeal raisin cookies, what is the average price he pays per cookie?

A. $1.20
B. $1.40
C. $1.50
D. $1.60
E. $2.00


We can create the following equation:

[2(18) + 12]/30 = 48/30 = 8/5 = 1.60

Answer: D
_________________

Scott Woodbury-Stewart
Founder and CEO

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

GMAT Club Bot
Re: At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin &nbs [#permalink] 13 Mar 2018, 17:03
Display posts from previous: Sort by

At a bakery, chocolate chip cookies sell for $2.00 and oatmeal raisin

  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®.