NEW HERE? LEARN MORE
closeclose
Last visit was: 26 Apr 2024, 03:13 It is currently 26 Apr 2024, 03:13
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

Solutions A, B, C, and D contain 20%, 40%, 50%, and 100% alcohol respe

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92929
Own Kudos [?]: 619101 [10]
Given Kudos: 81609
Send PM
CAT Tests Forum Quiz Mode
Solutions A, B, C, and D contain 20%, 40%, 50%, and 100% alcohol respe [#permalink] New post   17 Feb 2020, 08:30
10
Bookmarks
Expert Reply
00:00
A
B
C
D
E

Difficulty:

15% (low)

Question Stats:

83% (01:44) correct 17% (01:49) wrong based on 121 sessions
Hide Show timer Statistics
Solutions A, B, C, and D contain 20%, 40%, 50%, and 100% alcohol respectively. The four solutions are mixed in a proportion of 1:2:3:4 respectively. What will be the percentage of alcohol in the resultant solution?

A. 45%
B. 50%
C. 55%
D. 65%
E. 75%
ShowHide Answer
Official Answer
D
User avatar
D
fauji
IIM School Moderator
Joined: 05 Jan 2015
Status:So far only Dreams i have!!
Posts: 386
Own Kudos [?]: 352 [0]
Given Kudos: 214
WE:Consulting (Computer Software)
Send PM
Reviews Badge
Solutions A, B, C, and D contain 20%, 40%, 50%, and 100% alcohol respe [#permalink] New post   17 Feb 2020, 08:41
Approach:

Assume all 4 solution be in ratio: 1x:2x:3x:4x or take a simple case x = 1L(1000ml).

Each solution composition(in ml) of alcohol / non-alcohol would be:

A: 200/800
B: 800/1200
C: 1500/1500
D: 4000/0

Total Alcohol/Non-Alcohol Composition: 6500/3500

percentage of alcohol in the resultant solution: 65%

Option D
User avatar
P
jkolachi
Manager
Manager
Joined: 12 Oct 2015
Posts: 238
Own Kudos [?]: 360 [3]
Given Kudos: 144
Location: Canada
Concentration: Leadership, Accounting
Schools: Ivey '19 (A) Queen's 19 (A) Schulich Jan 18 Intake (A)
GMAT 1: 700 Q47 V39
GPA: 3
WE:Accounting (Accounting)
Send PM
Reviews Badge
Solutions A, B, C, and D contain 20%, 40%, 50%, and 100% alcohol respe [#permalink] New post   17 Feb 2020, 18:52
3
Kudos
User avatar
L
globaldesi
VP
VP
Joined: 28 Jul 2016
Posts: 1212
Own Kudos [?]: 1728 [0]
Given Kudos: 67
Location: India
Concentration: Finance, Human Resources
Schools: ISB '18 (D)
GPA: 3.97
WE:Project Management (Investment Banking)
Send PM
Reviews Badge
Re: Solutions A, B, C, and D contain 20%, 40%, 50%, and 100% alcohol respe [#permalink] New post   17 Feb 2020, 20:15
given ratio
1+2+3+4 = 10
given
thus net content is
20/100 + 40*2/100 + 50*3/100 + 4*100/100 whole divided by net volume (10)
65/100
= 65%
D
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32678
Own Kudos [?]: 822 [0]
Given Kudos: 0
Send PM
Re: Solutions A, B, C, and D contain 20%, 40%, 50%, and 100% alcohol respe [#permalink] New post   28 Apr 2022, 01:06
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Bot
gmatclubot
Re: Solutions A, B, C, and D contain 20%, 40%, 50%, and 100% alcohol respe [#permalink]
28 Apr 2022, 01:06
Moderators:
Bunuel
Math Expert
92929 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