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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

A home owner must pick between paint A, which costs $6.00 [#permalink]
17 Aug 2009, 14:08

2

This post received KUDOS

00:00

A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

50% (00:00) correct
50% (01:51) wrong based on 6 sessions

A home owner must pick between paint A, which costs $6.00 per liter, and paint B, which costs $4.50 per liter.Paint B takes one third longer to apply than paint A. If the home owner must pay the cost of labor at the rate of $36 per hour, which of the two paints will be cheaper to apply???

1> The ratio of the area covered by one liter of paint A to the area covered by one liter of paint B is 4:3.

2> Paint A will require 40 liters of paint and 100 hours of labor.

Kindly post a detailed and explained solution, and also the approach to crack.

Re: Which paint is cheaper to apply [#permalink]
17 Aug 2009, 15:22

[quote="gmac25"]A home owner must pick between paint A, which costs $6.00 per liter, and paint B, which costs $4.50 per liter.Paint B takes one third longer to apply than paint A. If the home owner must pay the cost of labor at the rate of $36 per hour, which of the two paints will be cheaper to apply???

1> The ratio of the area covered by one liter of paint A to the area covered by one liter of paint B is 4:3.

2> Paint A will require 40 liters of paint and 100 hours of labor.

a,b is number of liters 6a+36t ..................4.5b+36*4/3t = 4.5b+48t

am not sure if we can assume that the no of liters is directly proportional to the area covered but i am assuming so.

a/b = 4/ 3 ie: 3a = 4b thus 6a = 8b

the equation become 8b+36t as compared to 4.5b+48t.... i d say suff

Re: Which paint is cheaper to apply [#permalink]
17 Aug 2009, 15:34

gmac25 wrote:

A home owner must pick between paint A, which costs $6.00 per liter, and paint B, which costs $4.50 per liter. Paint B takes one third longer to apply than paint A. If the home owner must pay the cost of labor at the rate of $36 per hour, which of the two paints will be cheaper to apply???

1> The ratio of the area covered by one liter of paint A to the area covered by one liter of paint B is 4:3.

2> Paint A will require 40 liters of paint and 100 hours of labor.

Kindly post a detailed and explained solution, and also the approach to crack. If you like this question, consider for kudos!!!

1. One liter of paint A covers 4x square meter of area, whose cost = 6 One liter of paint B covers 3x square meter of area but to paint 4x square meter of area needs 1.3333 (4x/3x) liters of paint B. The cost of 1.3333 liters of paint B = 1.3333 x (4.5) = 6 Now it is suff since paint B costs more labor cost.

2. Statement 2 tells nothing details about the costs of each paints. NSF>

Re: Which paint is cheaper to apply [#permalink]
23 Apr 2011, 07:34

gmac25 wrote:

A home owner must pick between paint A, which costs $6.00 per liter, and paint B, which costs $4.50 per liter.Paint B takes one third longer to apply than paint A. If the home owner must pay the cost of labor at the rate of $36 per hour, which of the two paints will be cheaper to apply???

1> The ratio of the area covered by one liter of paint A to the area covered by one liter of paint B is 4:3.

2> Paint A will require 40 liters of paint and 100 hours of labor.

Ian / Karishma

Your opinion on this one please? I think the first ratio is enough to answer the question

From statement 1 It is actually the ratio of quantity of paint A used : quantity of paint B used = 3:4

If a = quantity of paint A used b = quantity of paint B used t1 = time required to apply paint A t2 = time required to apply paint B

Re: Which paint is cheaper to apply [#permalink]
23 Apr 2011, 10:52

2

This post received KUDOS

Expert's post

gmat1220 wrote:

Ian / Karishma

Your opinion on this one please?

First, I think it's a ridiculous question, because most people would (very reasonably) assume that one liter of paint A covers the same area as one liter of paint B. According to Statement 1, that's not the case. Second, with Statement 1 alone, we can answer the question: if we need 4 liters of paint B to cover the same area as 3 liters of paint A, then it will cost 4(4.50) = 18 dollars to cover that area with paint B, and 3(6) = 18 dollars to cover that area with paint A. So the paint costs are the same; the total cost will only be different because of labor costs. Since paint B takes longer to apply, paint B will cost more to apply, and Statement 1 is sufficient.

I have no idea how they can give E as an answer here, since if you use both Statements, you can work out exactly how many liters of each paint you'd need and how many hours each paint would take to apply. _________________

GMAT Tutor in Toronto

If you are looking for online GMAT math tutoring, or if you are interested in buying my advanced Quant books and problem sets, please contact me at ianstewartgmat at gmail.com

Originally posted on MIT Sloan School of Management : We are busy putting the final touches on our application. We plan to have it go live by July 15...