Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

proportion water spirit

Expert replies
by stormgal » Mon May 24, 2010 5:53 pm
A spirit and water solution is sold in a market. The cost per liter of the solution is directly proportional to the part (fraction) of the spirit (by the volume) the solution has. A solution of 1 liter of spirit and 1 liter of water costs 50 cents. How many cents does a solution of 1 liter of spirit and 2 liters of water cost?

OA will be posted after walkthru
Last edited by stormgal on Tue May 25, 2010 6:39 pm, edited 1 time in total.
Join the discussion
Source: — Problem Solving |

by liferocks » Mon May 24, 2010 5:57 pm
I think some information is missing.Can you please check the question once and confirm?
“If you don't know where you are going, any road will get you there.”
Lewis Carroll
Join the discussion

by Patrick_GMATFix » Mon May 24, 2010 5:58 pm
Plz post source so that ppl who only want to do certain questions will know whether to attempt this one (for example, some ppl only want to do official Qs and others don't want to do any GMATPrep except on their practice tests).

This is not written like a GMAT question so I'm guessing it's not from a GMAC source.
Join the discussion

by stormgal » Tue May 25, 2010 6:40 pm
Ok, I apologize for that. I had posted this question from my android phone lol. The question is from the Nova book.
Join the discussion

by liferocks » Tue May 25, 2010 8:53 pm
cost of solution C=k*s where k is constant ans s is fraction of spirit by volume
Also

50=k*1/2 or k=100

so cost of a solution of 1 liter of spirit and 2 liters of water=k*1/3=100/3=33.33

Ans 33.33cents
“If you don't know where you are going, any road will get you there.”
Lewis Carroll
Join the discussion

by frank1 » Wed May 26, 2010 3:13 am
stormgal wrote: The cost per liter of the solution is directly proportional to the part (fraction) of the spirit (by the volume) the solution has.
initially i fell into trap here
i though, the proportion of the spirit olny determines to cost,what ever may be the portion of water...
if it was so it would not be a GMAT question....lol

any way words has been constructed in that manner
Join the discussion

by yeahdisk » Wed May 26, 2010 6:04 am
50% soln costs 25cents per litre
so a 33% soln costs 16.6cents per litre

There are 3 litres, so 3x16.6 = 50cents

Final Answer = 50cents
Join the discussion