|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
09 Dec 2021, 03:15
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
66% (02:21) correct
34%
(02:22)
wrong
based on 148
sessions
History
Date
Time
Result
Not Attempted Yet
The minutes that it takes machine A to print n pages alone is half a minute that it takes machine B to print n pages alone. If machine A and machine B print n pages in 3 minutes when working together at their constant rates, respectively, in how many minutes machine B prints n pages alone?
A. 3.2 min
B. 3.6 min
C. 4.0 min
D. 4.5 min
E. 9.0 min
Are You Up For the Challenge: 700 Level Questions
A. 3.2 min
B. 3.6 min
C. 4.0 min
D. 4.5 min
E. 9.0 min
Are You Up For the Challenge: 700 Level Questions
09 Dec 2021, 05:58
Kudos
Bookmarks
Bunuel
Hi Bunuel
Could you please clarify the question again? The first sentence is not making much sense.
08 Jan 2022, 09:13
Kudos
Bookmarks
sanjitscorps18
Hey, I´m pretty sure he meant "a prints n pages in half the time that b needs for printing n pages"
--> Correct answer: E
a+b need 3 min. for n pages (so (n/3)/1min)
b prints n pages in x min. (so n/x / 1 min)
a prints n pages in (x/2) min. (so n/(x/2)min)
Now, you can set up the equation:
(n/x)/1min + (2/x)/1min = (n/3)/1min
and solve for x:
x=9
since b needs x minutes to print n pages, we now know that b needs 9 min. to print n pages.
