GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 20 May 2019, 17:41

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

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

If a photocopier makes 2 copies in 1/3 second, then, at the same rate,

Author Message
TAGS:

Hide Tags

Board of Directors
Joined: 01 Sep 2010
Posts: 3388
If a photocopier makes 2 copies in 1/3 second, then, at the same rate,  [#permalink]

Show Tags

21 May 2017, 08:55
3
Top Contributor
00:00

Difficulty:

5% (low)

Question Stats:

87% (01:04) correct 13% (01:22) wrong based on 123 sessions

HideShow timer Statistics

If a photocopier makes 2 copies in $$\frac{1}{3}$$ second, then, at the same rate, how many copies does it make in 4 minutes?

(A) 360

(B) 480

(C) 576

(D) 720

(E) 1,440

_________________
Math Expert
Joined: 02 Sep 2009
Posts: 55188
Re: If a photocopier makes 2 copies in 1/3 second, then, at the same rate,  [#permalink]

Show Tags

21 May 2017, 09:02
1
carcass wrote:
If a photocopier makes 2 copies in $$\frac{1}{3}$$ second, then, at the same rate, how many copies does it make in 4 minutes?

(A) 360

(B) 480

(C) 576

(D) 720

(E) 1,440

The rate of 2 copies in $$\frac{1}{3}$$ second = 6 copies in 1 second.

4 minutes = 4*60 = 240 seconds, thus in 240 seconds the photocopier will make 240*6 = 1,440 copies.

_________________
Target Test Prep Representative
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2823
Re: If a photocopier makes 2 copies in 1/3 second, then, at the same rate,  [#permalink]

Show Tags

30 May 2018, 17:09
carcass wrote:
If a photocopier makes 2 copies in $$\frac{1}{3}$$ second, then, at the same rate, how many copies does it make in 4 minutes?

(A) 360

(B) 480

(C) 576

(D) 720

(E) 1,440

The rate of the photocopier, in minutes, is:

2/(1/3) x 60 = 6 x 60 = 360

So in 4 minutes, 360 x 4 = 1,440 copies are made.

_________________

Jeffrey Miller

Jeff@TargetTestPrep.com
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

CEO
Joined: 12 Sep 2015
Posts: 3717
Re: If a photocopier makes 2 copies in 1/3 second, then, at the same rate,  [#permalink]

Show Tags

30 Sep 2018, 07:16
Top Contributor
carcass wrote:
If a photocopier makes 2 copies in $$\frac{1}{3}$$ second, then, at the same rate, how many copies does it make in 4 minutes?

(A) 360

(B) 480

(C) 576

(D) 720

(E) 1,440

We can also solve this question with equivalent ratios

We'll first convert 4 minutes to SECONDS in order to use the same units of measurement throughout the solution.
1 minute = 60 seconds
So, 4 minutes = 240 seconds.

Now let's set up and equation using the ratio # of copies/time in seconds
Let x = the number of copies made in 4 minutes (aka 240 seconds)
We get: 2/(1/3) = x/240
Cross multiply to get: (1/3)(x) = (2)(240)
Simplify: x/3 = 480
Multiply both sides by 3 to get: x = 1440

RELATED VIDEO FROM OUR COURSE

_________________
Test confidently with gmatprepnow.com
Re: If a photocopier makes 2 copies in 1/3 second, then, at the same rate,   [#permalink] 30 Sep 2018, 07:16
Display posts from previous: Sort by