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

 It is currently 06 Jul 2015, 04:02

### 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

# X grams of water were added to the 80 grams of a strong

Author Message
TAGS:
Manager
Joined: 04 Jun 2008
Posts: 159
Followers: 2

Kudos [?]: 27 [0], given: 0

X grams of water were added to the 80 grams of a strong [#permalink]  30 Aug 2008, 04:27
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
$$X$$ grams of water were added to the 80 grams of a strong solution of acid. As a result, the concentration of acid in the solution dropped by $$Y$$ percent. What was the concentration of acid in the original solution?

1. $$X = 80$$
2. $$Y = 50$$
SVP
Joined: 07 Nov 2007
Posts: 1824
Location: New York
Followers: 29

Kudos [?]: 564 [0], given: 5

Re: DS- Solutions [#permalink]  30 Aug 2008, 05:14
chan4312 wrote:
$$X$$ grams of water were added to the 80 grams of a strong solution of acid. As a result, the concentration of acid in the solution dropped by $$Y$$ percent. What was the concentration of acid in the original solution?

1. $$X = 80$$
2. $$Y = 50$$

1 and 2 itself not suffcient

when you combine..

orignal concentrations c1
concentration after adding water = c2=c1/2

c1=A1/80 c2= A1/80+80 =1/2 c1

No way we can find A1..

Will go for E.

What is OA
_________________

Smiling wins more friends than frowning

Re: DS- Solutions   [#permalink] 30 Aug 2008, 05:14
Similar topics Replies Last post
Similar
Topics:
6 X grams of water were added to the 80 grams of a strong 14 18 Nov 2008, 10:16
X grams of water were added to the grams of a strong 2 11 Nov 2008, 01:53
How much water (in grams) should be added to the 2 29 Mar 2008, 11:35
X grams of water were added to the 80 grams of a strong 2 03 Jan 2008, 23:02
3 X grams of water were added to the 80 grams of a strong 8 02 Dec 2006, 07:43
Display posts from previous: Sort by