A certain hotel has 1,400 single rooms and 420 double rooms. : PS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 20 Jan 2017, 00:17

### 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

# A certain hotel has 1,400 single rooms and 420 double rooms.

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Director
Joined: 17 Oct 2005
Posts: 932
Followers: 1

Kudos [?]: 203 [0], given: 0

A certain hotel has 1,400 single rooms and 420 double rooms. [#permalink]

### Show Tags

30 Nov 2005, 09:41
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 2 sessions

### HideShow timer Statistics

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

A certain hotel has 1,400 single rooms and 420 double rooms. Each room is cleaned by one person. If one person can clean a single room every 15 mins and a double room every 20 minutes, how many cleaning persons are needed to clean all of the rooms if each person works for exactly 7 hours?
Manager
Joined: 15 Aug 2005
Posts: 136
Followers: 2

Kudos [?]: 23 [0], given: 0

Re: PS rates? [#permalink]

### Show Tags

30 Nov 2005, 10:04
joemama142000 wrote:
A certain hotel has 1,400 single rooms and 420 double rooms. Each room is cleaned by one person. If one person can clean a single room every 15 mins and a double room every 20 minutes, how many cleaning persons are needed to clean all of the rooms if each person works for exactly 7 hours?

Is it 70?

total number of Hours required to clean all the rooms=
1400 * 15/60 + 420 * 20/60
=490 hrs

If one person only spends 7 hrs then 70 people will be required, provided they do not go to lunch in between or go for a bio break.
Re: PS rates?   [#permalink] 30 Nov 2005, 10:04
Display posts from previous: Sort by

# A certain hotel has 1,400 single rooms and 420 double rooms.

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.