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

 It is currently 29 May 2017, 23:35

### 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

# GMAT club Flashcards v7 questions

Author Message
Current Student
Joined: 24 Apr 2012
Posts: 38
GMAT 1: 660 Q48 V33
WE: Information Technology (Health Care)
Followers: 0

Kudos [?]: 14 [0], given: 35

GMAT club Flashcards v7 questions [#permalink]

### Show Tags

12 Dec 2012, 12:21
Hi All,

I am going through GMAT club Flashcards v7. I have difficulty understanding following questions. Please help !

Question 1 (page 21)

certain bacteria colony doubles in size every day
for 20 days, at which point it reaches the limit of its
habitat and can no longer grow. If two bacteria
colonies start growing simultaneously, how many
days will it take them to reach the habitat’s limit?
 6.33
 7.5
 10
 15
 19

Its mentioned -

1 colony = x * 2^20

I think it should be x* 2^20 because 1st day the size is x then second it is 2x (x*2^1) and so on then 20th day it will be x*2^19 (0 to 20 the difference is 19)

Question 2 (page 13)

If a farmer sells 15 of his chickens, his stock of feed will
last for 4 more days than planned, but if he buys 20
more chickens, he will run out of feed 3 days earlier
than planned. If no chickens are sold or bought, the
farmer will be exactly on schedule. How many chickens
does the farmer have?
 12
 24
 48
 55
 60

The solution mentions -
Solving the first equation, we get x=60 and y=12

Where is the first equation ? I can see only the below equation which gives x=5y

(x‐15)(y+4)=(x+20)(y‐3)
Founder
Joined: 04 Dec 2002
Posts: 14970
Location: United States (WA)
GMAT 1: 750 Q49 V42
GPA: 3.5
Followers: 3963

Kudos [?]: 25223 [0], given: 4767

Re: GMAT club Flashcards v7 questions [#permalink]

### Show Tags

12 Dec 2012, 13:16
_________________

Founder of GMAT Club

US News Rankings progression - last 10 years in a snapshot - New!
Just starting out with GMAT? Start here...
Need GMAT Book Recommendations? Best GMAT Books

Co-author of the GMAT Club tests

Re: GMAT club Flashcards v7 questions   [#permalink] 12 Dec 2012, 13:16
Similar topics Replies Last post
Similar
Topics:
GMAT Club Questions 2 03 May 2016, 11:28
1 QUESTION ON GMAT CLUB USAGE 4 01 May 2016, 00:22
6 GMAT Club Flashcards in Anki 0 16 Jun 2013, 19:55
GMAT Club test Question 1 30 May 2011, 05:35
477 GMAT Flashcards 219 29 Mar 2017, 13:56
Display posts from previous: Sort by

# GMAT club Flashcards v7 questions

Moderator: HiLine

 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®.