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.

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:

An empty mental box weights 10 percent of its total weight [#permalink]
13 Nov 2006, 13:39

00:00

A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct
0% (00:00) wrong based on 0 sessions

An empty mental box weights 10 percent of its total weight when filled with varnish. if the weight of a partly filled box is one-half taht of a completely filled box, what fraction of the box is filled?

An empty mental box weights 10 percent of its total weight when filled with varnish. if the weight of a partly filled box is one-half taht of a completely filled box, what fraction of the box is filled?

I think we need to go one more step ahead...
Here we got the weight of the partly filled box = 2x/5
So the fraction is = partly filled weight / total weight = (2x/5)/(9x/10) = 4/9

An empty mental box weights 10 percent of its total weight when filled with varnish. if the weight of a partly filled box is one-half taht of a completely filled box, what fraction of the box is filled?

A) 3/5

B) 5/9

C) 1/2

D) 4/9

E) 2/5

W = W/2
WE = 0.1WF
WE + K = WF / 2
0.1WF + K = WF / 2
2K = WF â€“ 0.1WF
2K = 0.9WF
K = 0.9WF / 2
K = 0.45WF

Approx:
A = 15%
B = 55%
C = 50%
D = 44% CLOSED ANSWER D
E = 10%