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

Redeem

PS: Equations

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 301
Joined: Tue Apr 22, 2008 6:07 am
Thanked: 2 times

PS: Equations

by beater » Wed Sep 17, 2008 12:05 pm
If x, y, and k are positive numbers such that (x/x+y) (10) + (y/x+y) (20) = k and if x < y, which of the following could be the value of k?


A. 10


B. 12


C. 15


D. 18


E. 30
Top
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 2623
Joined: Mon Jun 02, 2008 3:17 am
Location: Montreal
Thanked: 1090 times
Followed by:355 members
GMAT Score:780

by Ian Stewart » Wed Sep 17, 2008 12:51 pm
I posted a solution here:

www.beatthegmat.com/number-system-sets-t14684.html
Top
Post new topic Post Reply
• Page 1 of 1