Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 06 May 2015, 08:43

# Right Now:

Darden is releasing R3 decisions: Check your profile status    |    EXPECTING SOON - Stanford  and  Fuqua   |   Join Chat Room for Live Updates

### 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

Author Message
TAGS:
Manager
Joined: 29 Aug 2007
Posts: 110
Followers: 1

Kudos [?]: 2 [0], given: 0

I get way to confused with what the question is really asking for in word problems. And the choices are so close to each other , that I often land up chosing the wrong one! Is there a simple way to understand what the question is REALLY asking for ..

Eg

A batch of cookies was divided among three tins 2/3 of all the cookies are placed in Either the blue tin or Green tin, and the rest were placed in the red tin. If 1/4 of the cookies were placed in the blue tin , what fraction of the cookies that were placed in other tins were placed in the green tin

(a) 15/2

(b) 9/4

(c) 5/9

(d) 7/ 5

(e) 9/7

What is this question really asking me to calculate?
VP
Joined: 09 Jul 2007
Posts: 1108
Location: London
Followers: 6

Kudos [?]: 74 [0], given: 0

beatgmat wrote:
I get way to confused with what the question is really asking for in word problems. And the choices are so close to each other , that I often land up chosing the wrong one! Is there a simple way to understand what the question is REALLY asking for ..

Eg

A batch of cookies was divided among three tins 2/3 of all the cookies are placed in Either the blue tin or Green tin, and the rest were placed in the red tin. If 1/4 of the cookies were placed in the blue tin , what fraction of the cookies that were placed in other tins were placed in the green tin

(a) 15/2

(b) 9/4

(c) 5/9

(d) 7/ 5

(e) 9/7

What is this question really asking me to calculate?

If 1/4 of the cookies were placed in the blue tin , what fraction of the cookies that were placed in other tins were placed in the green tin

we know that blue tin is given so it is out, now OTHER left, so they are GREEN and RED, so we need to find:

GREEN/(GREEN+RED)

now the only way to solve it easily is picking numbers:
pick multiple of denominator always if it is about ratios.

so 12 will do, which is minimum.

step by step:

A) now we know that 2/3 of 12 cookies are placed in either BLUE or GREEN tins so 8 of cookes are placed in either of them.

B) then the rest 4 are placed in RED tin.

C) then 1/4 of cookes were placed in BLUE tin, so 3 cookies placed in BLUE, and that makes our A clear now we know that A says 8 cookies are in either of BLUE and GREEN, so BLUE has 3 and 5 are in GREEN

D) as we defined above OTHER tins are GREEN and RED right!
RED-4, GREEN-5 ----> gives us 5/9

Director
Joined: 26 Jul 2007
Posts: 541
Schools: Stern, McCombs, Marshall, Wharton
Followers: 5

Kudos [?]: 118 [0], given: 0

beatgmat wrote:
I get way to confused with what the question is really asking for in word problems. And the choices are so close to each other , that I often land up chosing the wrong one! Is there a simple way to understand what the question is REALLY asking for ..

Eg

A batch of cookies was divided among three tins 2/3 of all the cookies are placed in Either the blue tin or Green tin, and the rest were placed in the red tin. If 1/4 of the cookies were placed in the blue tin , what fraction of the cookies that were placed in other tins were placed in the green tin

(a) 15/2

(b) 9/4

(c) 5/9

(d) 7/ 5

(e) 9/7

What is this question really asking me to calculate?

With questions like this I just have make sure I pay attention to what they are telling me.

The stem says 2/3 goes in blue and green and the rest goes in red. First fact, red contains 1 - 2/3 or 1/3.

Next fact is that there is 1/4 in blue.

So that leaves 1 - 1/3 - 1/4 in red or 12/12 - 4/12 - 3/12 = 5/12.

So there is 9/12 in red and green and 5/12 in just green so:

x * 9/12 = 5/12

x = 5/12 * 12/9 = 5/9
Manager
Joined: 06 Jul 2007
Posts: 57
Followers: 1

Kudos [?]: 9 [0], given: 0

1-2/3=1/3 are in Red

Green+Blue=2/3 where Blue has 1/4 so Green= 2/3-1/4= 5/12

which is not there in answer choices, so it's wrong . Can anybody tell Whats wrong with this way?

Even if we cross check it
B+G+R = 1
1/4+1/3+5/12 = 1
VP
Joined: 09 Jul 2007
Posts: 1108
Location: London
Followers: 6

Kudos [?]: 74 [0], given: 0

somethingbetter wrote:
1-2/3=1/3 are in Red

Green+Blue=2/3 where Blue has 1/4 so Green= 2/3-1/4= 5/12

which is not there in answer choices, so it's wrong . Can anybody tell Whats wrong with this way?

Even if we cross check it
B+G+R = 1
1/4+1/3+5/12 = 1

look at my post: the stem ask for GREEN/GREEN+RED
Manager
Joined: 06 Jul 2007
Posts: 57
Followers: 1

Kudos [?]: 9 [0], given: 0

this is what happens when I try to speed up my snail-paced Quant...huh
Similar topics Replies Last post
Similar
Topics:
Sugar Cookies and Contingency Plans 0 23 Dec 2013, 09:45
10 Pretzel Vendor:tough cookie! 8 04 Apr 2013, 11:16
1 In a cookie-eating contest, there are 200 cookies provided 10 19 Nov 2012, 08:49
1 A baker makes chocolate cookies and peanut cookies. His 4 17 May 2012, 02:32
1 In a cookie-eating contest, there are 200 cookies provided 7 18 Jun 2011, 20:03
Display posts from previous: Sort by