NEW HERE? LEARN MORE
closeclose
Last visit was: 27 Apr 2024, 02:18 It is currently 27 Apr 2024, 02:18
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

A mixture comprises water and liquids A and B. The volume of water is

SORT BY:
Date
Kudos
Tags:
Poor Qualityx      
Find Similar Topics 
Show Tags
Hide Tags
User avatar
S
Manas1212
Manager
Manager
Joined: 31 Jul 2017
Posts: 73
Own Kudos [?]: 96 [1]
Given Kudos: 474
Location: India
Schools: LBS '21 Anderson '21
Send PM
GMAT ToolKit User
A mixture comprises water and liquids A and B. The volume of water is [#permalink] New post   Updated on: 04 May 2019, 02:35
1
Bookmarks
00:00
A
B
C
D
E

Difficulty:

95% (hard)

Question Stats:

38% (03:24) correct 63% (03:16) wrong based on 32 sessions
Hide Show timer Statistics
A mixture comprises water and liquids A and B. The volume of water is 1/3rd of the total mixture and the volume of liquids A and B are in the ratio 5:3.To remove the water, the mixture is passed through a porous medium which completely absorbs the water and partially absorbs liquid a. Altogether this porous medium absorbs 200 ml of the initial mixture.If the ratio of volume of liquids A and B in the residual concentrated mixture becomes 7:9 then find the volume of water absorbed by the porous medium

A)60 ml

B)200/3 ml

C)80 ml

D)100 ml

E)120 ml

This Question is Locked Due to Poor Quality
Hi there,
The question you've reached has been archived due to not meeting our community quality standards. No more replies are possible here.
Looking for better-quality questions? Check out the 'Similar Questions' block below for a list of similar but high-quality questions.
Want to join other relevant Problem Solving discussions? Visit our Problem Solving (PS) Forum for the most recent and top-quality discussions.
Thank you for understanding, and happy exploring!
ShowHide Answer
Official Answer
E

Originally posted by Manas1212 on 03 May 2019, 05:12.
Last edited by Manas1212 on 04 May 2019, 02:35, edited 2 times in total.
User avatar
L
IanStewart
GMAT Tutor
Joined: 24 Jun 2008
Posts: 4128
Own Kudos [?]: 9247 [0]
Given Kudos: 91
 Q51  V47
Send PM
Re: A mixture comprises water and liquids A and B. The volume of water is [#permalink] New post   03 May 2019, 06:02
Expert Reply
Manas1212 wrote:
A mixture comprises water and liquids A and B. The volume of water is 1/3rd of the total mixture and the volume of liquids A and B are in the ratio 5:3. ... If the ratio of volume of liquids A and B in the residual concentrated mixture becomes 7:9 then find the volume of water absorbed by the porous medium

A)60 ml

B)200/3 ml

C)80 ml

D)100 ml

E)120 ml



I have no idea what the question even means (what is the "porous medium" mentioned at the end, for example), but it should be clear that there is no way to answer it with only the information given. All we're told are ratios, but the question asks for an amount. You can't find an amount only from ratios, since if, say, 120 mL is a possible answer, then just changing the units of all of the relevant quantities, 120 L would also be a correct answer, or 120 gallons, or 120 of any unit at all, and thus any answer at all is possible.

It's not a GMAT question even if an amount is provided somewhere, but as written, it's also unanswerable.
User avatar
S
Manas1212
Manager
Manager
Joined: 31 Jul 2017
Posts: 73
Own Kudos [?]: 96 [0]
Given Kudos: 474
Location: India
Schools: LBS '21 Anderson '21
Send PM
GMAT ToolKit User
Re: A mixture comprises water and liquids A and B. The volume of water is [#permalink] New post   04 May 2019, 02:37
IanStewart wrote:
Manas1212 wrote:
A mixture comprises water and liquids A and B. The volume of water is 1/3rd of the total mixture and the volume of liquids A and B are in the ratio 5:3. ... If the ratio of volume of liquids A and B in the residual concentrated mixture becomes 7:9 then find the volume of water absorbed by the porous medium

A)60 ml

B)200/3 ml

C)80 ml

D)100 ml

E)120 ml




I have no idea what the question even means (what is the "porous medium" mentioned at the end, for example), but it should be clear that there is no way to answer it with only the information given. All we're told are ratios, but the question asks for an amount. You can't find an amount only from ratios, since if, say, 120 mL is a possible answer, then just changing the units of all of the relevant quantities, 120 L would also be a correct answer, or 120 gallons, or 120 of any unit at all, and thus any answer at all is possible.

It's not a GMAT question even if an amount is provided somewhere, but as written, it's also unanswerable.


The question is edited now. But i believe one of the moderators has already marked it poor quality.
User avatar
B
ankitarya12
Intern
Intern
Joined: 03 May 2019
Posts: 3
Own Kudos [?]: 16 [3]
Given Kudos: 1139
Send PM
Re: A mixture comprises water and liquids A and B. The volume of water is [#permalink] New post   04 May 2019, 03:39
2
Kudos
1
Bookmarks
Lets denote Water as W

W/(W+A+B)= 1/3,

A/B= 5/3
B= 3A/5

Thus W= 4A/5

After the mixture is passed through porous medium it absorbs Water completely and some amount of Liquid A.

Let new Amount of Liquid A be A1

Therefore W+A+B-200= A1+B
Also A1/B=7/9
Solving above two equation we get

W= 120ml

Posted from my mobile device

This Question is Locked Due to Poor Quality
Hi there,
The question you've reached has been archived due to not meeting our community quality standards. No more replies are possible here.
Looking for better-quality questions? Check out the 'Similar Questions' block below for a list of similar but high-quality questions.
Want to join other relevant Problem Solving discussions? Visit our Problem Solving (PS) Forum for the most recent and top-quality discussions.
Thank you for understanding, and happy exploring!
GMAT Club Bot
gmatclubot
Re: A mixture comprises water and liquids A and B. The volume of water is [#permalink]
04 May 2019, 03:39
Moderators:
Bunuel
Math Expert
92950 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions