Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

It is currently 23 May 2017, 08:04

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Two hundred gallons of fuel oil are purchased...

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

Hide Tags

Current Student
User avatar
Joined: 06 Sep 2013
Posts: 2005
Concentration: Finance
Followers: 68

Kudos [?]: 643 [0], given: 355

GMAT ToolKit User
Two hundred gallons of fuel oil are purchased... [#permalink]

Show Tags

New post 17 Sep 2013, 08:43
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

92% (02:27) correct 8% (01:19) wrong based on 59 sessions

HideShow timer Statistics

Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140
(B) 220
(C) 260
(D) 322
(E) 330
[Reveal] Spoiler: OA
Expert Post
Math Expert
User avatar
P
Joined: 02 Sep 2009
Posts: 38822
Followers: 7716

Kudos [?]: 105862 [0], given: 11593

Re: Two hundred gallons of fuel oil are purchased... [#permalink]

Show Tags

New post 17 Sep 2013, 09:01
jlgdr wrote:
Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140
(B) 220
(C) 260
(D) 322
(E) 330


1 gallon costs $0.91;
Consumed at a rate of $0.70 worth of fuel per hour.

So, in 1 hour 0.7/0.91 gallons are consumed. Therefore, 200 gallons will be consumed in 200/(0.7/0.91) = 260 hours.

Answer: C.
_________________

New to the Math Forum?
Please read this: 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

Current Student
User avatar
Joined: 06 Sep 2013
Posts: 2005
Concentration: Finance
Followers: 68

Kudos [?]: 643 [0], given: 355

GMAT ToolKit User
Re: Two hundred gallons of fuel oil are purchased... [#permalink]

Show Tags

New post 21 Sep 2013, 11:55
Bunuel wrote:
jlgdr wrote:
Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140
(B) 220
(C) 260
(D) 322
(E) 330


1 gallon costs $0.91;
Consumed at a rate of $0.70 worth of fuel per hour.

So, in 1 hour 0.7/0.91 gallons are consumed. Therefore, 200 gallons will be consumed in 200/(0.7/0.91) = 260 hours.

Answer: C.


How could you approximate to 260 hrs?
Expert Post
Math Expert
User avatar
P
Joined: 02 Sep 2009
Posts: 38822
Followers: 7716

Kudos [?]: 105862 [0], given: 11593

Re: Two hundred gallons of fuel oil are purchased... [#permalink]

Show Tags

New post 21 Sep 2013, 12:01
jlgdr wrote:
Bunuel wrote:
jlgdr wrote:
Two hundred gallons of fuel oil are purchased at $0.91 per gallon and are consumed at a rate of $0.70 worth of fuel per hour. At this rate, how many hours are required to consume the 200 gallons of fuel oil?

(A) 140
(B) 220
(C) 260
(D) 322
(E) 330


1 gallon costs $0.91;
Consumed at a rate of $0.70 worth of fuel per hour.

So, in 1 hour 0.7/0.91 gallons are consumed. Therefore, 200 gallons will be consumed in 200/(0.7/0.91) = 260 hours.

Answer: C.


How could you approximate to 260 hrs?


\(\frac{200}{(\frac{0.7}{0.91})} = 200*\frac{10}{7}*\frac{91}{100} = 20*13=260\).
_________________

New to the Math Forum?
Please read this: 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

Re: Two hundred gallons of fuel oil are purchased...   [#permalink] 21 Sep 2013, 12:01
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic A hybrid car has a 15-gallon fuel tank and uses one gallon of fuel to Bunuel 2 15 Feb 2017, 23:16
1 Experts publish their posts in the topic The pilot of a small aircraft with a 40-gallon fuel tank wants to fly Bunuel 2 19 Oct 2016, 11:48
1 Experts publish their posts in the topic A certain truck uses 18 gallons of diesel fuel in traveling 270 miles Bunuel 4 27 Jul 2016, 14:10
18 Experts publish their posts in the topic An empty fuel tank with a capacity of 200 gallons was fill macjas 11 22 May 2014, 02:16
8 Experts publish their posts in the topic The ratio of the amount of Alex's fuel oil bill for the mont ben928 13 02 Feb 2017, 11:47
Display posts from previous: Sort by

Two hundred gallons of fuel oil are purchased...

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


GMAT Club MBA Forum Home| About| 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®.