Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 25 May 2017, 03:10

### 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

# What is the algebraic solution? A 500 ml solution is 20%

Author Message
CEO
Joined: 21 Jan 2007
Posts: 2747
Location: New York City
Followers: 11

Kudos [?]: 940 [0], given: 4

What is the algebraic solution? A 500 ml solution is 20% [#permalink]

### Show Tags

21 Oct 2007, 15:07
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What is the algebraic solution?

A 500 ml solution is 20% alcohol by volume. If 100 ml of water is added, what is the new concentration of alcohol?
VP
Joined: 09 Jul 2007
Posts: 1102
Location: London
Followers: 6

Kudos [?]: 110 [0], given: 0

### Show Tags

21 Oct 2007, 15:15
Do you have 16.6 or 17 % among answer choices

new solution 500+100=600

600x=500*1/5
x=1/6=~17%
CEO
Joined: 21 Jan 2007
Posts: 2747
Location: New York City
Followers: 11

Kudos [?]: 940 [0], given: 4

### Show Tags

21 Oct 2007, 15:33
Ravshonbek wrote:
Do you have 16.6 or 17 % among answer choices

new solution 500+100=600

600x=500*1/5
x=1/6=~17%

thanks. i think i am getting dumber as i study.
VP
Joined: 09 Jul 2007
Posts: 1102
Location: London
Followers: 6

Kudos [?]: 110 [0], given: 0

### Show Tags

21 Oct 2007, 15:37
bmwhype2 wrote:
Ravshonbek wrote:
Do you have 16.6 or 17 % among answer choices

new solution 500+100=600

600x=500*1/5
x=1/6=~17%

thanks. i think i am getting dumber as i study.

http://www.purplemath.com
and mgmat 7 series have nice explanations
21 Oct 2007, 15:37
Display posts from previous: Sort by