BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Car and gas usage

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 221
Joined: Mon Dec 22, 2008 6:24 pm
Thanked: 2 times

Car and gas usage

by mgmt_gmat » Thu Feb 11, 2010 5:29 am
51) At 50 mph a car uses 1 gallon for every 30 miles. If the car starts with a full tank of 12 gallons and drives for 5 hrs at 50mph, the amount of gas used would be what fraction of the tank?
a. 3�25
b. 11�36
c. 7�12
d. 2�3
e. 25�36

Pease explain.
Top
Source: — Problem Solving |
User avatar
Legendary Member
Posts: 1275
Joined: Thu Sep 21, 2006 11:13 pm
Location: Arabian Sea
Thanked: 125 times
Followed by:2 members

by ajith » Thu Feb 11, 2010 6:11 am
mgmt_gmat wrote:51) At 50 mph a car uses 1 gallon for every 30 miles. If the car starts with a full tank of 12 gallons and drives for 5 hrs at 50mph, the amount of gas used would be what fraction of the tank?
a. 3�25
b. 11�36
c. 7�12
d. 2�3
e. 25�36

Pease explain.
the total capacity of tank = 12 gallons
Kms run = 250
Gas used = 250/30 gallons
amount of gas used as a fraction of the tank = 250/360 = 25/36
Always borrow money from a pessimist, he doesn't expect to be paid back.
Top
User avatar
Legendary Member
Posts: 1560
Joined: Tue Nov 17, 2009 2:38 am
Thanked: 137 times
Followed by:5 members

by thephoenix » Thu Feb 11, 2010 6:30 am
mgmt_gmat wrote:51) At 50 mph a car uses 1 gallon for every 30 miles. If the car starts with a full tank of 12 gallons and drives for 5 hrs at 50mph, the amount of gas used would be what fraction of the tank?
a. 3�25
b. 11�36
c. 7�12
d. 2�3
e. 25�36

Pease explain.
tank=12 gallons
in 5 hrs car drives @ 50mph=250 miles
for 30 miles car consumes =1 gallon
for 250 consumption is=250/30=25/3

fraction=consumption/capacity=25/3/12=25/36
Top
User avatar
Legendary Member
Posts: 1022
Joined: Mon Jul 20, 2009 11:49 pm
Location: Gandhinagar
Thanked: 41 times
Followed by:2 members

by shashank.ism » Thu Feb 11, 2010 6:51 am
mgmt_gmat wrote:51) At 50 mph a car uses 1 gallon for every 30 miles. If the car starts with a full tank of 12 gallons and drives for 5 hrs at 50mph, the amount of gas used would be what fraction of the tank?
a. 3�25
b. 11�36
c. 7�12
d. 2�3
e. 25�36

Pease explain.
Velocity of car = 50 mph, In 5 hrs distance covered = 50 x 5 = 250 miles
so volume of gas used = 250/30
fraction of tank = 250/30/12 = 25/36. Ans E
My Websites:
www.mba.webmaggu.com - India's social Network for MBA Aspirants

www.deal.webmaggu.com -India's online discount, coupon, free stuff informer.

www.dictionary.webmaggu.com - A compact free online dictionary with images.

Nothing is Impossible, even Impossible says I'm possible.
Top
Post new topic Post Reply
• Page 1 of 1