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

It is currently 20 Nov 2018, 19:58

Close

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
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.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • All GMAT Club Tests are Free and open on November 22nd in celebration of Thanksgiving Day!

     November 22, 2018

     November 22, 2018

     10:00 PM PST

     11:00 PM PST

    Mark your calendars - All GMAT Club Tests are free and open November 22nd to celebrate Thanksgiving Day! Access will be available from 0:01 AM to 11:59 PM, Pacific Time (USA)
  • Free lesson on number properties

     November 23, 2018

     November 23, 2018

     10:00 PM PST

     11:00 PM PST

    Practice the one most important Quant section - Integer properties, and rapidly improve your skills.

If a certain reel of film runs at 5/6 of a frame per second, how long.

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Director
Director
User avatar
D
Joined: 11 Feb 2015
Posts: 571
Premium Member CAT Tests
If a certain reel of film runs at 5/6 of a frame per second, how long.  [#permalink]

Show Tags

New post 30 Oct 2018, 08:19
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (01:25) correct 14% (01:59) wrong based on 49 sessions

HideShow timer Statistics

If a certain reel of film runs at 5/6 of a frame per second, how long will it take to run 2580 frames of the film?

(A) 8.6 minutes
(B) 51.6 minutes
(C) 5.16 hours
(D) 5.8 hours
(E) 5.96 hours

_________________

"Please hit :thumbup: +1 Kudos if you like this post" :student_man:

_________________
Manish :geek:

"Only I can change my life. No one can do it for me"

Manager
Manager
User avatar
P
Joined: 18 Jun 2018
Posts: 236
Premium Member CAT Tests
If a certain reel of film runs at 5/6 of a frame per second, how long.  [#permalink]

Show Tags

New post 30 Oct 2018, 08:42
1
OA:B
Total number of Frames\(= 2580 \quad Frames\)

Rate \(= \frac{5 \quad Frames}{6 \quad Second}\)

Time to run (in second) \(= \frac{2580 \quad Frames}{ \frac{5 \quad Frames}{6 \quad Second}}=\frac{2580*6}{5}\) seconds

Time to run (in minutes)\(=\frac{2580*6}{5*60}\) minutes \(= 51.6\) minutes
Target Test Prep Representative
User avatar
P
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 4170
Location: United States (CA)
Re: If a certain reel of film runs at 5/6 of a frame per second, how long.  [#permalink]

Show Tags

New post 31 Oct 2018, 17:27
CAMANISHPARMAR wrote:
If a certain reel of film runs at 5/6 of a frame per second, how long will it take to run 2580 frames of the film?

(A) 8.6 minutes
(B) 51.6 minutes
(C) 5.16 hours
(D) 5.8 hours
(E) 5.96 hours


It will take 2580/(5/6) = 15,480/5 = 3096 seconds or 3096/60 = 51.6 minutes.

Alternate Solution:

We can set up a proportion: “5/6 of a frame is to 1 second as 2580 frames is to x seconds:”

(5/6)/1 = 2580/x

5/6 = 2580/x

5x = 6 x 2580

x = 6 x 516 seconds

In minutes, we divide by 60 (or 6 x 10), obtaining:

6 x 516 / 6 x 10 = 51.6 minutes.

Answer: B
_________________

Scott Woodbury-Stewart
Founder and CEO

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

CR Forum Moderator
avatar
P
Joined: 25 Apr 2018
Posts: 333
Premium Member Reviews Badge CAT Tests
Re: If a certain reel of film runs at 5/6 of a frame per second, how long.  [#permalink]

Show Tags

New post 04 Nov 2018, 20:01
CAMANISHPARMAR wrote:
If a certain reel of film runs at 5/6 of a frame per second, how long will it take to run 2580 frames of the film?

(A) 8.6 minutes
(B) 51.6 minutes
(C) 5.16 hours
(D) 5.8 hours
(E) 5.96 hours


Application of Concept Distance=Speed * Time

Time=Distance/ Speed

=2580/(5/6)
=(2580*6)/5
=516*6/60 minutes
=51.36 mins

Option B is the answer
_________________

Please give kudos if you found my posts helpful!

Project CR Butler - 2 CR's everyday

Manager
Manager
avatar
S
Joined: 11 Mar 2018
Posts: 88
Re: If a certain reel of film runs at 5/6 of a frame per second, how long.  [#permalink]

Show Tags

New post 04 Nov 2018, 20:28
CAMANISHPARMAR wrote:
If a certain reel of film runs at 5/6 of a frame per second, how long will it take to run 2580 frames of the film?

(A) 8.6 minutes
(B) 51.6 minutes
(C) 5.16 hours
(D) 5.8 hours
(E) 5.96 hours


We can use unitary method for this and get to the conclusion ->

\(\frac{5}{6}\) Frames ---------- 1 second

Hence,

1 Frame --------------- \(\frac{6}{5}\) seconds

Now we have 2580 frames, therefore,

2580 Frames ------------- \(\frac{6}{5} * 2580\) seconds

Solving further,

2580 Frames ------------- \(6 * 516\) seconds

Converting second to minutes

\(6 * 516\) seconds = \(\frac{6}{60} * 516\) minutes

Hence answer becomes, 51.6 Minutes

Hence, B
_________________

Regards
AD
---------------------------------
A Kudos is one more question and its answer understood by somebody !!!

GMAT Club Bot
Re: If a certain reel of film runs at 5/6 of a frame per second, how long. &nbs [#permalink] 04 Nov 2018, 20:28
Display posts from previous: Sort by

If a certain reel of film runs at 5/6 of a frame per second, how long.

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


cron
Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.