Rate Problem

This topic has expert replies
Source: — Problem Solving |

Legendary Member
Posts: 1337
Joined: Sat Dec 27, 2008 6:29 pm
Thanked: 127 times
Followed by:10 members

by Night reader » Sat Mar 12, 2011 2:20 pm
462/tank - 336/tank = 6, tank=21; travel in the city --> 336/21=16

IOM b
Attachments
dr02.JPG
My knowledge frontiers came to evolve the GMATPill's methods - the credited study means to boost the Verbal competence. I really like their videos, especially for RC, CR and SC. You do check their study methods at https://www.gmatpill.com

User avatar
GMAT Instructor
Posts: 15539
Joined: Tue May 25, 2010 12:04 pm
Location: New York, NY
Thanked: 13060 times
Followed by:1906 members
GMAT Score:790

by GMATGuruNY » Sat Mar 12, 2011 2:37 pm
garuhape wrote:Hey Guys,

I got a problem on this one. Can someone help please!

Image
We can plug in the answers, which represent the miles per gallon in the city:

Answer choice C: 21 miles per gallon in the city, 27 miles per gallon on the highway
336/21 = 16 gallons in the tank.
16*27 = 432 miles traveled on the highway.
Doesn't work, since 462 miles need to be traveled on the highway.
Eliminate C.

Answer choice B: 16 miles per gallon in the city, 22 miles per gallon on the highway
336/16 = 21 gallons in the tank.
21*22 = 462 miles traveled on the highway.
Success!

The correct answer is B.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3