Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack
GMAT Club

 It is currently 24 Mar 2017, 01:05

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Laura can paint 1/x of a certain room in 20 minutes. What

Author Message
Senior Manager
Joined: 23 May 2005
Posts: 266
Location: Sing/ HK
Followers: 1

Kudos [?]: 44 [0], given: 0

Laura can paint 1/x of a certain room in 20 minutes. What [#permalink]

### Show Tags

05 Nov 2006, 01:08
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Laura can paint 1/x of a certain room in 20 minutes. What fraction of the same room can Joseph paint in 20 minutes if the two of them can paint the room in an hour, working together at their respective rates?

1/3x

3x/x-3

x-3/3x

x/x-3

x-3/x
_________________

Impossible is nothing

Senior Manager
Joined: 01 Oct 2006
Posts: 497
Followers: 1

Kudos [?]: 32 [0], given: 0

### Show Tags

05 Nov 2006, 01:13
Laura can paint 1/x in 20 minutes thus in 60 minutess she can paint 3/x
Thus joey paints 1-3/x =x-3/x in 60 minutes

In 20 minutes
x-3/x ...60
y.....20
y =20(x-3)/60x =x-3/3x
05 Nov 2006, 01:13
Display posts from previous: Sort by