GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 20 Jan 2019, 09:12

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar

In order to complete a reading assignment on time, Terry

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

 
Senior Manager
Senior Manager
User avatar
B
Joined: 24 Jun 2016
Posts: 280
GMAT 1: 770 Q60 V60
GPA: 4
Re: In order to complete a reading assignment on time, Terry  [#permalink]

Show Tags

New post 09 Aug 2017, 17:55
1
There is really one variable in this question: other unknowns can be derived from the number of days in total Terry has to complete the reading assignment. So let x be that number of days. We have:

90x = Total number of pages = 75(x-6) + 690
So 15x = 240
x = 16

QED.
_________________

Are you aiming for a 700+ GMAT score and a top 10 MBA?
If you are, we should talk. I specialize in ambitious students.


$80/hour as of May 2018.


http://www.facebook.com/HanoiGMATtutor
HanoiGMATTutor@gmail.com

Manager
Manager
avatar
B
Joined: 07 Jun 2017
Posts: 102
Re: In order to complete a reading assignment on time, Terry  [#permalink]

Show Tags

New post 09 Aug 2017, 18:06
Please correct me if I am wrong,

My thinking is
She has 690 pages left for the last 6 days
She supposed to 540 pages left (since she planned to read 90 pages per day)

690-540= 160 pages behind)

She had been reading 75 pages per day, (90-75= 15 behind every day)
160/15= 10~ days at the beginning
10~days+ the last 6 days = 16
Director
Director
User avatar
B
Status: No dream is too large, no dreamer is too small
Joined: 14 Jul 2010
Posts: 516
CAT Tests
Re: In order to complete a reading assignment on time, Terry  [#permalink]

Show Tags

New post 20 Jul 2018, 07:42
Top Contributor
Total Page = 75n + 690
Average is 90
so , [[75n+90]/n+6 ]] = 90
= 75n + 690 = 90n + 540
= 15n = 150
n = 10 days [she read 75 pages per day]
She will require = 10+6 = 16 days.
_________________

Collections:-
PSof OG solved by GC members: http://gmatclub.com/forum/collection-ps-with-solution-from-gmatclub-110005.html
DS of OG solved by GC members: http://gmatclub.com/forum/collection-ds-with-solution-from-gmatclub-110004.html
100 GMAT PREP Quantitative collection http://gmatclub.com/forum/gmat-prep-problem-collections-114358.html
Collections of work/rate problems with solutions http://gmatclub.com/forum/collections-of-work-rate-problem-with-solutions-118919.html
Mixture problems in a file with best solutions: http://gmatclub.com/forum/mixture-problems-with-best-and-easy-solutions-all-together-124644.html

Director
Director
avatar
P
Joined: 31 Jul 2017
Posts: 518
Location: Malaysia
Schools: INSEAD Jan '19
GMAT 1: 700 Q50 V33
GPA: 3.95
WE: Consulting (Energy and Utilities)
Re: In order to complete a reading assignment on time, Terry  [#permalink]

Show Tags

New post 20 Jul 2018, 08:20
nelz007 wrote:
In order to complete a reading assignment on time, Terry planned to read 90 pages per day. However, she read only 75 pages per day at first, leaving 690 pages to be read during the last 6 days before the assignment was to be completed. How many days in all did Terry have to complete the assignment on time?

(A) 15
(B) 16
(C) 25
(D) 40
(E) 46

Stuck on this question its from OG 13 - 119


Let n be the total number of Days.

90n = 75(n-6) + 690
n = 16.
_________________

If my Post helps you in Gaining Knowledge, Help me with KUDOS.. !!

Veritas Prep GMAT Instructor
User avatar
D
Joined: 16 Oct 2010
Posts: 8795
Location: Pune, India
Re: In order to complete a reading assignment on time, Terry  [#permalink]

Show Tags

New post 01 Dec 2018, 01:48
nelz007 wrote:
In order to complete a reading assignment on time, Terry planned to read 90 pages per day. However, she read only 75 pages per day at first, leaving 690 pages to be read during the last 6 days before the assignment was to be completed. How many days in all did Terry have to complete the assignment on time?

(A) 15
(B) 16
(C) 25
(D) 40
(E) 46

Stuck on this question its from OG 13 - 119



"In order to complete a reading assignment on time, Terry planned to read 90 pages per day. "
Reading 90 pages/day would have completed the assignment.

"However, she read only 75 pages per day at first,"
She read 15 fewer pages each day till ...

leaving 690 pages to be read during the last 6 days before the assignment was to be completed.
690 pages were left for 6 days. Actually as per plan only 90*6 = 540 pages should have been left for 6 days.
Why were there 690 - 540 = 150 extra pages left to read? Because she read 15 fewer pages each day. To gather 150 extra pages left unread, she must have read 15 fewer pages for 10 days.

"How many days in all did Terry have to complete the assignment on time?"
She has already read for 10 days and has 6 more to go so she had total 16 days.

Answer (B)
_________________

Karishma
Veritas Prep GMAT Instructor

Learn more about how Veritas Prep can help you achieve a great GMAT score by checking out their GMAT Prep Options >

Manager
Manager
User avatar
B
Joined: 17 Mar 2018
Posts: 65
Re: In order to complete a reading assignment on time, Terry  [#permalink]

Show Tags

New post 01 Dec 2018, 02:21
Let number of days with 90 pages per day be x
Hence total pages in book is 90x

However, for the beginning days (lets say y) only 75 pages were read,
hence 75y+690=90x

we know y+6=x days, so

75 y+ 690 = 90 (y+6)
75 y+ 690= 90y+ 540

15 y= 150
y= 10

total days= 10+6= 16
GMAT Club Bot
Re: In order to complete a reading assignment on time, Terry &nbs [#permalink] 01 Dec 2018, 02:21

Go to page   Previous    1   2   [ 26 posts ] 

Display posts from previous: Sort by

In order to complete a reading assignment on time, Terry

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.