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

It is currently 21 Sep 2018, 20:28

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

Every evening Nigel eats half of the cookies in his cookie jar. In ord

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

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49300
Every evening Nigel eats half of the cookies in his cookie jar. In ord  [#permalink]

Show Tags

New post 18 Sep 2016, 10:20
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (00:57) correct 14% (00:38) wrong based on 66 sessions

HideShow timer Statistics

Every evening Nigel eats half of the cookies in his cookie jar. In order to cover up his dirty deeds, he then adds two more cookies to the jar. Last week, how many cookies were there in the jar on Wednesday morning?

(1) When full, the cookie jar contains 28 cookies, and on Sunday morning last week the cookie jar was full.

(2) The jar contained 10 cookies on Tuesday morning last week.

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Manager
Manager
avatar
Joined: 05 Jun 2015
Posts: 83
Location: United States
WE: Engineering (Transportation)
Re: Every evening Nigel eats half of the cookies in his cookie jar. In ord  [#permalink]

Show Tags

New post 18 Sep 2016, 18:30
(1) When full, the cookie jar contains 28 cookies, and on Sunday morning last week the cookie jar was full.

Cookies on Sunday evening = \(\frac{28}{2}\) + 2 = 16
Cookies on Monday evening = \(\frac{16}{2}\)+2 = 10
Cookies on Tuesday evening = \(\frac{10}{2}\)+2 = 7

Hence cookies on Wednesday morning = 7

(2) The jar contained 10 cookies on Tuesday morning last week.
Cookies on Tuesday Evening = \(\frac{10}{2}\)+2 = 7
Hence cookies on Wednesday morning = 7

Either statement is sufficient. Option D
Senior Manager
Senior Manager
User avatar
Joined: 11 Nov 2014
Posts: 336
Location: India
Concentration: Finance, International Business
WE: Project Management (Telecommunications)
GMAT ToolKit User Premium Member
Re: Every evening Nigel eats half of the cookies in his cookie jar. In ord  [#permalink]

Show Tags

New post 18 Sep 2016, 20:13
sunday 28
left 14
added 2
16

monday 16
8
10

tue 10
5
7

wed 7

D
Manager
Manager
avatar
S
Joined: 24 Oct 2013
Posts: 145
Location: India
Concentration: General Management, Strategy
WE: Information Technology (Computer Software)
Re: Every evening Nigel eats half of the cookies in his cookie jar. In ord  [#permalink]

Show Tags

New post 21 Sep 2016, 23:51
I choose D
Both statements can give count of cookies on Wednesday
Intern
Intern
avatar
Joined: 23 Aug 2016
Posts: 5
Re: Every evening Nigel eats half of the cookies in his cookie jar. In ord  [#permalink]

Show Tags

New post 23 Sep 2016, 03:46
Good question.

Can do without calculations. Everyday something is happening to the biscuits...divided by 2 and +2...... so eventually we will stop at some point.


Bunuel wrote:
Every evening Nigel eats half of the cookies in his cookie jar. In order to cover up his dirty deeds, he then adds two more cookies to the jar. Last week, how many cookies were there in the jar on Wednesday morning?

(1) When full, the cookie jar contains 28 cookies, and on Sunday morning last week the cookie jar was full.

(2) The jar contained 10 cookies on Tuesday morning last week.
Senior Manager
Senior Manager
User avatar
B
Status: Come! Fall in Love with Learning!
Joined: 05 Jan 2017
Posts: 457
Location: India
Premium Member
Re: Every evening Nigel eats half of the cookies in his cookie jar. In ord  [#permalink]

Show Tags

New post 23 Feb 2017, 06:05
(1) When full, the cookie jar contains 28 cookies, and on Sunday morning last week the cookie jar was full.

(2) The jar contained 10 cookies on Tuesday morning last week.

Prompt analysis
Let the number of cookies on the day on wednesday be x.
No. of cookies left in the jar on tuesday will be = 2(x-2) =2x-4
No. of cookies left in the jar on monday will be = 2(2x-4-2) = 4x-12
No. of cookies left in the jar on sunday will be = 2(4x-12-2) = 8x-28

And so on.

Superset
The number of cookies at any day will be a whole number.

Translation
In order to find the exact number of cookies, we need:
1# the value of x
2# the number of cookies any day.

Statement analysis
St 1: on sunday, the number cookies is 28, which is equal to 8x -28. Therefore x = 7. ANSWER
St 2: on tuesday, the number of cookies is 10, which is equal to 2x-14. Therefore x = 7 . ANSWER

Option D
_________________

GMAT Mentors
Image

Re: Every evening Nigel eats half of the cookies in his cookie jar. In ord &nbs [#permalink] 23 Feb 2017, 06:05
Display posts from previous: Sort by

Every evening Nigel eats half of the cookies in his cookie jar. In ord

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

Events & Promotions

PREV
NEXT


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®.