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

It is currently 29 Jul 2015, 02:27
GMAT Club Tests

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

How much water (in grams) should be added to the

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Director
Director
avatar
Joined: 11 Jun 2007
Posts: 649
Followers: 4

Kudos [?]: 100 [0], given: 0

How much water (in grams) should be added to the [#permalink] New post 04 Nov 2007, 19:28
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

How much water (in grams) should be added to the 35%-solution of acid to obtain the 10%-solution?

(1) There are 50 grams of the 35%-solution
(2) In the 35%-solution the ratio of acid to water is 7:13

Please explain your answers. Thanks.

Last edited by eyunni on 05 Nov 2007, 06:13, edited 1 time in total.
Director
Director
avatar
Joined: 11 Jun 2007
Posts: 649
Followers: 4

Kudos [?]: 100 [0], given: 0

Re: Challenge 09, Q18 [#permalink] New post 05 Nov 2007, 06:13
GMAT TIGER wrote:
eyunni wrote:
How much water (in grams) should be added to the 35%-solution of acid to obtain the 10%-solution?

(1) There are 50 grams of the 35%-solution
(2) In the 35%-solution the ratio of acid to water is 7:13


A


7:13 is the ratio of weight or volume?
Manager
Manager
avatar
Joined: 01 Nov 2007
Posts: 69
Followers: 1

Kudos [?]: 3 [0], given: 0

 [#permalink] New post 05 Nov 2007, 06:35
A

1. There is 50 grams of 35% solution. Therefore there is 17.5 grams of acid. to make this 10% acid solution 175-17.5 = 157.5 grams of water should be added.

2. Statement 2 says the same thing twice. 35% solution and ratio of acid to water is 7 : 13 is the same thing i.e ratio of acid to total solution is 7 : 20 = 35%
  [#permalink] 05 Nov 2007, 06:35
Display posts from previous: Sort by

How much water (in grams) should be added to the

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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®.