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

Redeem

Equations

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Community Manager
Posts: 991
Joined: Thu Sep 23, 2010 6:19 am
Location: Bangalore, India
Thanked: 146 times
Followed by:24 members

by shovan85 » Fri Oct 08, 2010 12:33 pm
x/y = 1/4 and a/b = 1/4
=> y = 4x and b = 4a

(x - a)/(y - b)
=(x - a)/(4x-4a)
=1/4
Top
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 » Fri Oct 08, 2010 12:56 pm
lokesh r wrote:If x/y = 1/4 and a/b = 1/4, then (x - a)/(y - b) =
(A) -1/4
(B) 0,
(C) 1/4
(D) 1/2
(E) 8


Ans c
Plug in x=2, y=8, a=1, b=4.
(x-a)/(y-b) = (2-1)/(8-4) = 1/4.

The correct answer is C.

This problem should make clear that x≠a and y≠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
Top
Senior | Next Rank: 100 Posts
Posts: 77
Joined: Sat Sep 25, 2010 9:45 pm

by Yanat » Fri Oct 08, 2010 10:00 pm
IMO it is C

If x/y = 1/4 and a/b = 1/4, then (x - a)/(y - b) =
(A) -1/4
(B) 0
(C) 1/4
(D) 1/2
(E) 8

x=y/4 and a=b/4. Put these values in the numerator and we have 1/4(y-b) and in denominator (y-b) and so when we divide, we have 1/4 left.
Top
Post new topic Post Reply
• Page 1 of 1