It is currently 22 Mar 2018, 14:39

### 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

# George takes 8 hours to copy a 50 page manuscript while

Author Message
VP
Joined: 30 Jun 2008
Posts: 1019
George takes 8 hours to copy a 50 page manuscript while [#permalink]

### Show Tags

27 Oct 2008, 20:46
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 6 sessions

### HideShow timer Statistics

George takes 8 hours to copy a 50 page manuscript while Sonya can copy the same in 6 hours. How many hours would it take them to copy a 100 page manuscript, if they work together ?

A) 6$$\frac{6}{7}$$
B) 9
C) 9$$\frac{5}{7}$$
D) 10$$\frac{2}{3}$$
E) 14

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________

"You have to find it. No one else can find it for you." - Bjorn Borg

Current Student
Joined: 28 Dec 2004
Posts: 3311
Location: New York City
Schools: Wharton'11 HBS'12

### Show Tags

27 Oct 2008, 21:37
i takes 16 hrs for george to print 100 pages and 12 hours for sonya

working together they will take 1/16+1/12 or 48/7 hours

A it is..
Director
Joined: 23 May 2008
Posts: 757

### Show Tags

28 Oct 2008, 15:08
50/8 + 50/6 =1/h=700/48=100pgs in 6 and 6/7 hrs

A
VP
Joined: 05 Jul 2008
Posts: 1369

### Show Tags

28 Oct 2008, 15:54
another A

16 hrs -100 pages 12 hrs -100 pages

Combined rate is 700/48 pages in 1 hr.

100 pages in 48/7 hrs = 6 6/7
Senior Manager
Joined: 21 Apr 2008
Posts: 265
Location: Motortown

### Show Tags

28 Oct 2008, 16:29
Another A
1/(1/16+1/12) = 48/7 = 6 6/7
VP
Joined: 30 Jun 2008
Posts: 1019

### Show Tags

28 Oct 2008, 21:26
OA is A ..... I had done some stupid mistake

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________

"You have to find it. No one else can find it for you." - Bjorn Borg

Re: PS : MANUSCRIPT   [#permalink] 28 Oct 2008, 21:26
Display posts from previous: Sort by