NEW HERE? LEARN MORE
closeclose
Last visit was: 24 Apr 2024, 08:13 It is currently 24 Apr 2024, 08:13
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

If an automobile averaged 22.5 miles per gallon of gasoline

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
alltimeacheiver
Intern
Intern
Joined: 09 Feb 2011
Posts: 7
Own Kudos [?]: 725 [39]
Given Kudos: 1
Send PM
If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   Updated on: 08 Nov 2023, 03:15
3
Kudos
36
Bookmarks
00:00
A
B
C
D
E

Difficulty:

15% (low)

Question Stats:

82% (02:03) correct 18% (02:18) wrong based on 1257 sessions
Hide Show timer Statistics
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many kilometers per liter of gasoline did the automobile average? (1 mile = 1.6 kilometers and 1 gallon = 3.8 liters, both rounded to the nearest tenth.)

A. 3.7
B. 9.5
C. 31.4
D. 53.4
E. 136.8

PS09703
ShowHide Answer
Official Answer
B

Originally posted by alltimeacheiver on 11 Feb 2011, 03:27.
Last edited by Bunuel on 08 Nov 2023, 03:15, edited 2 times in total.
Most Helpful Reply
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92902
Own Kudos [?]: 618751 [10]
Given Kudos: 81587
Send PM
CAT Tests Forum Quiz Mode
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   11 Feb 2011, 04:30
3
Kudos
7
Bookmarks
Expert Reply
alltimeacheiver wrote:
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many
kilometers per liter of gasoline did the automobile average? (1 mile = 1.6 kilometers and
1 gallon = 3.8 liters, both rounded to the nearest tenth.)
A. 3.7
B. 9.5
C. 31.4
D. 53.4
E. 136.8


\(average=\frac{22.5 \ miles}{1 \ gallon}=\frac{22.5*1.6 \ kilometers}{3.8 \ liters}=\frac{36}{3.8}\approx{9.5}\) (22.5*1.6 is ~40 and 3.8 is ~4 so the result must be ~10).

Answer: B.
User avatar
L
KarishmaB
Tutor
Joined: 16 Oct 2010
Posts: 14817
Own Kudos [?]: 64894 [5]
Given Kudos: 426
Location: Pune, India
Send PM
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   Updated on: 11 Oct 2022, 00:38
4
Kudos
1
Bookmarks
Expert Reply
alltimeacheiver wrote:
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many
kilometers per liter of gasoline did the automobile average? (1 mile = 1.6 kilometers and
1 gallon = 3.8 liters, both rounded to the nearest tenth.)
A. 3.7
B. 9.5
C. 31.4
D. 53.4
E. 136.8


Please check my signature for the link to the relevant blog posts.

Originally posted by KarishmaB on 11 Feb 2011, 15:09.
Last edited by KarishmaB on 11 Oct 2022, 00:38, edited 1 time in total.
General Discussion
User avatar
144144
Manager
Manager
Joined: 08 Nov 2010
Posts: 204
Own Kudos [?]: 496 [0]
Given Kudos: 161
 Q50  V41
GPA: 3.9
WE 1: Business Development
Send PM
GMAT ToolKit User
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   12 Feb 2011, 11:50
Thanks for the question.
User avatar
L
ScottTargetTestPrep
Target Test Prep Representative
Joined: 14 Oct 2015
Status:Founder & CEO
Affiliations: Target Test Prep
Posts: 18754
Own Kudos [?]: 22044 [2]
Given Kudos: 283
Location: United States (CA)
Send PM
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   27 Feb 2018, 10:33
1
Kudos
1
Bookmarks
Expert Reply
alltimeacheiver wrote:
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many kilometers per liter of gasoline did the automobile average? (1 mile = 1.6 kilometers and 1 gallon = 3.8 liters, both rounded to the nearest tenth.)

A. 3.7
B. 9.5
C. 31.4
D. 53.4
E. 136.8


22.5 miles is 22.5 x 1.6 = 36 km.

1 gallon is 3.8 liters.

So the approximate rate, in km/liter, is 36/3.8 = 9.473.

Answer: B
User avatar
L
Archit3110
GMAT Club Legend
GMAT Club Legend
Joined: 18 Aug 2017
Status:You learn more from failure than from success.
Posts: 8019
Own Kudos [?]: 4095 [0]
Given Kudos: 242
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1:
545 Q79 V79 DI73
GPA: 4
WE:Marketing (Energy and Utilities)
Send PM
GMAT ToolKit User CAT Tests
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   09 Oct 2019, 08:44
alltimeacheiver wrote:
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many kilometers per liter of gasoline did the automobile average? (1 mile = 1.6 kilometers and 1 gallon = 3.8 liters, both rounded to the nearest tenth.)

A. 3.7
B. 9.5
C. 31.4
D. 53.4
E. 136.8


from given
22.5*1.6/3.8
~9.5
IMO B
User avatar
G
Basshead
Director
Director
Joined: 09 Jan 2020
Posts: 966
Own Kudos [?]: 223 [0]
Given Kudos: 434
Location: United States
Send PM
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   23 Nov 2020, 12:35
alltimeacheiver wrote:
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many kilometers per liter of gasoline did the automobile average? (1 mile = 1.6 kilometers and 1 gallon = 3.8 liters, both rounded to the nearest tenth.)

A. 3.7
B. 9.5
C. 31.4
D. 53.4
E. 136.8


\(\frac{22.5 }{ 1 gallon} = \frac{1.6 killometers }{ 1 gallon} = \frac{1 gallon}{3.8 liters}\) = \(\frac{20 * 2 }{4} = 10\)

Answer is B.
User avatar
S
ruis
Manager
Manager
Joined: 17 Sep 2023
Posts: 129
Own Kudos [?]: 52 [0]
Given Kudos: 476
Send PM
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   20 Feb 2024, 06:53
How can I calculate 22.5 * 1.6 quickly?
I did (225 / 10) * (16 / 10) = (15 * 15 * 16) / 100 thinking this was the quickest way but it took me long to multiply 225 * 16 (could not do the calculation in my head).


Thank you :)
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92902
Own Kudos [?]: 618751 [1]
Given Kudos: 81587
Send PM
CAT Tests Forum Quiz Mode
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   20 Feb 2024, 09:49
1
Kudos
Expert Reply
 
ruis wrote:
How can I calculate 22.5 * 1.6 quickly?
I did (225 / 10) * (16 / 10) = (15 * 15 * 16) / 100 thinking this was the quickest way but it took me long to multiply 225 * 16 (could not do the calculation in my head).


:)

­
\( 22.5 * 1.6 = \frac{45}{2}*\frac{8}{5} =45*\frac{4}{5} = 9*4=36\)­
User avatar
S
ruis
Manager
Manager
Joined: 17 Sep 2023
Posts: 129
Own Kudos [?]: 52 [0]
Given Kudos: 476
Send PM
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink] New post   20 Feb 2024, 09:52
Bunuel wrote:
ruis wrote:
How can I calculate 22.5 * 1.6 quickly?
I did (225 / 10) * (16 / 10) = (15 * 15 * 16) / 100 thinking this was the quickest way but it took me long to multiply 225 * 16 (could not do the calculation in my head).


:)

­
\( 22.5 * 1.6 = \frac{45}{2}*\frac{8}{5} =45*\frac{4}{5} = 9*4=36\)­

­That´s beautiful!! Thank you Bunuel! You are the best
GMAT Club Bot
gmatclubot
Re: If an automobile averaged 22.5 miles per gallon of gasoline [#permalink]
20 Feb 2024, 09:52
Moderators:
Bunuel
Math Expert
92902 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions