Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

best method to solve it

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Master | Next Rank: 500 Posts
Posts: 144
Joined: Sun Aug 29, 2010 9:17 amFollowed by: 4 members
Thanked: 40 times
GMAT Score:760

by jaymw » Mon Apr 18, 2011 8:17 pm
This problem should be solved using estimation techniques.

Let us look at the denominator first.

1/0.07 is a little more than 14. To know why, ask yourself how many times 7 fits into 100. 14*7=98 so the first fraction will be a little greater than 14.

Same goes for the second fraction in the denominator. How many times does 16 fit into 100? 6 times! 6*16=96 so that fraction will equal a little more than 6.

Together the denominator will be a little greater than 20.

Since the numerator is a little less than 5 and is devided by something a little greater than 20, we should expect a result that is LESS than 1/4. Only option A fullfils this!
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members
Location: Milpitas, CA
Thanked: 1854 times
GMAT Score:770

by Anurag@Gurome » Mon Apr 18, 2011 8:23 pm
alltimeacheiver wrote:4.896/(1/0.07 + 1/0.16)
is approximately equal to:


.238
.262
.625
.649
6.25
1/0.07 = 100/7 and 1/0.16 = 100/16 = 25/4
100/7 + 25/4 = 14 + 6 = 20 (approximately), if actually divide the values then this value be more than 20
Therefore, 4.896/(1/0.07 +1/0.16) = 5/20 = 1/4 = 0.25(approximately)
So, the value of the expression will be less than 0.25 as the actual value of 100/7 + 25/4 will be more than 20.

The correct answer is A.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 183
Joined: Wed Feb 09, 2011 3:08 amFollowed by: 5 members
Location: Delhi
Thanked: 1 times

by alltimeacheiver » Mon Apr 18, 2011 8:36 pm
thanks good approach. i saw this question in Mgmat tests but u were at best approach
Top
Join the discussion