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

Redeem

Integers - DS

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
User avatar
Legendary Member
Posts: 588
Joined: Sun Oct 16, 2011 9:42 am
Location: New Delhi, India
Thanked: 130 times
Followed by:9 members
GMAT Score:720

by rijul007 » Wed Dec 14, 2011 1:29 am
For integers a, b, and c; a/(b-c) = 1 , What is the value of (b-c)/b?
(1) a/b = 3/5
(2) a and b have no common factors greater than 1.
a/(b-c) = 1
a = b-c


(b-c)/b
=> a/b

What is the value of a/b?


(1) a/b = 3/5


Sufficient


(2) a and b have no common factors greater than 1.
could be anything
2/3
3/4
4/5
.
.
.

Insufficient

IMO: Option A
Top

GMAT/MBA Expert

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

by Anurag@Gurome » Wed Dec 14, 2011 2:09 am
karthikpandian19 wrote:For integers a, b, and c; a/(b-c) = 1 , What is the value of (b-c)/b?
(1) a/b = 3/5
(2) a and b have no common factors greater than 1.
(1) a/b = 3/5
a/(b-c) = 1 or a = b - c
(b - c)/b = 3/5; SUFFICIENT.

(2) a and b have no common factors greater than 1. There can be many such possibilities; NOT sufficient.

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
Post new topic Post Reply
• Page 1 of 1