Author 
Message 
TAGS:

Hide Tags

VP
Joined: 06 Jun 2004
Posts: 1053
Location: CA

A batch of cookies was divided among three tins: 2/3 of all [#permalink]
Show Tags
17 Oct 2005, 17:28
1
This post was BOOKMARKED
Question Stats:
52% (02:41) correct
48% (01:01) wrong based on 97 sessions
HideShow timer Statistics
A batch of cookies was divided among three tins: 2/3 of all the cookies were placed in either the blue tin or the green tin, and the rest were placed in the red tin. If 1/4 of all the cookies were placed in the blue tin, what fraction of the cookies that were placed in the other tins were placed in the green tin? A. 15/2 B. 9/4 C. 5/9 D. 7/5 E. 9/7 OPEN DISCUSSION OF THIS QUESTION IS HERE: abatchofcookieswasdividedamomg3tins23ofallthe86680.html
Official Answer and Stats are available only to registered users. Register/ Login.



Director
Joined: 21 Aug 2005
Posts: 789

red = 1/3
blue + green = 2/3
blue = 1/4, so green = 5/12
we are asked > green/(blue+red) = 5/7
but i don't see this in the ans. let me think...



Current Student
Joined: 28 Dec 2004
Posts: 3357
Location: New York City
Schools: Wharton'11 HBS'12

suppose there are 12 cookies
then 1/3 or 4 are put in red bin
1/4 of 12=3 cookies in blue tin
then green tin will have 5 cookies
now the question is asking of the remainin cookies that were not put in blue bin, what fraction was put in green tin
so 5/(5+4) or 5/9



Director
Joined: 21 Aug 2005
Posts: 789

gsr wrote: red = 1/3 blue + green = 2/3 blue = 1/4, so green = 5/12 we are asked > green/(blue+red) = 5/7 but i don't see this in the ans. let me think...
Now I see, we are asked to find green/(green + red) = 5/9



Director
Joined: 21 Aug 2005
Posts: 789

HIMALAYA wrote: freshina, where did you find that?
Himalaya, read this part alone  i think it made sense
"If 1/4 of all the cookies were placed in the blue tin, what fraction of the cookies that were placed in the other tins " > green+red!



Current Student
Joined: 28 Dec 2004
Posts: 3357
Location: New York City
Schools: Wharton'11 HBS'12

what fraction of the cookies that were placed in the other tins [red and green] were placed in the green tin
BTW this problem is not GMAT quality I think ! GMAT questions are very clear...i mean in quant they are not testing your RC skills...right?
HIMALAYA wrote: TeHCM wrote: what fraction of the cookies that were placed in the other tins were placed in the green tin? fresinha12 wrote: the question is asking of the remainin cookies that were not put in blue bin, what fraction was put in green tin freshina, where did you find that?



Director
Joined: 21 Aug 2005
Posts: 789

fresinha12...u seem to be fully charged up in the evening compared to how you were in the morning! cool!
what time of the day are you taking the test?



VP
Joined: 06 Jun 2004
Posts: 1053
Location: CA

OA is C, 5/9. This question was in Kaplan 800.
I'm still a little confused. When it says "What fraction of the cookies that were placed in the other tins...." why shouldn't the blue tin be counted towards the "other" tins?
(I hope the real GMAT does not have convoluted wording questions such as this one)



Director
Joined: 21 Aug 2005
Posts: 789

Hope GMAT will not have such wordings!
Read one of my above posts, others = other than blue.



VP
Joined: 06 Jun 2004
Posts: 1053
Location: CA

gsr wrote: Hope GMAT will not have such wordings!
Read one of my above posts, others = other than blue.
Ahh...Thanks! Careless reading. I think I need glasses......



SVP
Joined: 05 Apr 2005
Posts: 1710

gsr wrote: fresinha12...u seem to be fully charged up in the evening compared to how you were in the morning! cool! what time of the day are you taking the test?
seems freshina12 is reday for joining 7xx club.



Current Student
Joined: 28 Dec 2004
Posts: 3357
Location: New York City
Schools: Wharton'11 HBS'12

morning....damnit...I should change to an evening time...
gsr wrote: fresinha12...u seem to be fully charged up in the evening compared to how you were in the morning! cool! what time of the day are you taking the test?



GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5043
Location: Singapore

1
This post received KUDOS
Blue tin or red tin: 2/3 (N)
Red tin: (1/3)N
Blue tin: (1/4)N
What the last statment meant, is it wants this fraction: (# of cookies in green tin)/(# of cookies in red and green tin)
# of cookies in green tin = 2N/3  N/4 = 8N 3N/12 = 5N/12
# of cookies in red and green tin = N/3 + 5N/12 = 9N/12
Fraction = 5N/12 * 12/9N = 5/9 (C)



VP
Joined: 06 Jun 2004
Posts: 1053
Location: CA

Thanks everyone!



Director
Joined: 14 Oct 2003
Posts: 583
Location: On Vacation at My Crawford, Texas Ranch

I hate to beat a dead horse  but I'll do it any way.
Draw a table for these questions and you'll be less confused  I'm a visual type of test taker  you probably haven't notice.
Attachments
cookies.JPG [ 15.17 KiB  Viewed 3439 times ]



SVP
Joined: 05 Apr 2005
Posts: 1710

Titleist wrote: I hate to beat a dead horse  but I'll do it any way. Draw a table for these questions and you'll be less confused  I'm a visual type of test taker  you probably haven't notice.
your previous avatar was awsome.....



VP
Joined: 13 Jun 2004
Posts: 1115
Location: London, UK
Schools: Tuck'08

Re: PS Word Problem [#permalink]
Show Tags
20 Oct 2005, 04:32
TeHCM wrote: A batch of cookies was divided among three tins: 2/3 of all the cookies were placed in either the blue tin or the green tin, and the rest were placed in the red tin. If 1/4 of all the cookies were placed in the blue tin, what fraction of the cookies that were placed in the other tins were placed in the green tin?
if we say the cookies are in either the blue tin or the green tin, it means that they can only be in one of them, not both or not shared. So how come you can get 1/4 later in the blue tin ? i don't get this one



SVP
Joined: 03 Jan 2005
Posts: 2233

Re: PS Word Problem [#permalink]
Show Tags
20 Oct 2005, 09:06
2/3 are in either blue or green tin, and 1/4 are actually in blue tin, with the rest goes to the green tin. Say toal is 12, then 8 goes to blue or green. We later know that 3 actually goes to blue tin, so 83=5 got to go into the green tin.
_________________
Keep on asking, and it will be given you;
keep on seeking, and you will find;
keep on knocking, and it will be opened to you.



VP
Joined: 06 Jun 2004
Posts: 1053
Location: CA

Re: PS Word Problem [#permalink]
Show Tags
20 Oct 2005, 09:22
Antmavel wrote: TeHCM wrote: A batch of cookies was divided among three tins: 2/3 of all the cookies were placed in either the blue tin or the green tin, and the rest were placed in the red tin. If 1/4 of all the cookies were placed in the blue tin, what fraction of the cookies that were placed in the other tins were placed in the green tin?
if we say the cookies are in either the blue tin or the green tin, it means that they can only be in one of them, not both or not shared. So how come you can get 1/4 later in the blue tin ? i don't get this one
The question said 2/3 of all the cookies were placed in either the blue tin or the green tin. Not ALL the cookies were placed in blue or green.
Also, it was stated in the first sentence that "A batch of cookies was divided among 3 tins...". Hope this helps!



Senior Manager
Joined: 26 Jul 2005
Posts: 313
Location: Los Angeles

fresinha  nice answer! I understood your explanation the best.
I think the question itself was worded too weird...







Go to page
1 2
Next
[ 30 posts ]




