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 500,000 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:

On Monday Elton arrived at the recording studio at 8:00 am [#permalink]

Show Tags

29 Jul 2012, 13:19

1

This post received KUDOS

1

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

35% (medium)

Question Stats:

67% (01:33) correct 33% (01:24) wrong based on 389 sessions

HideShow timer Statistics

On Monday Elton arrived at the recording studio at 8:00 am, and left at noon (12:00 pm), after he had finished recording \(\frac{5}{9}\) of his new album. On Tuesday he arrived at 8:10 am, and left after he had completed recording the entire album, while working at the same rate as the day before. At what time did Elton leave the recording studio on Tuesday?

A. 11:12 am B. 11:22 am C. 11:30 am D. 3:12 pm E. 3:22 pm

On Monday Elton arrived at the recording studio at 8:00 am, and left at noon (12:00 pm), after he had finished recording \(\frac{5}{9}\) of his new album. On Tuesday he arrived at 8:10 am, and left after he had completed recording the entire album, while working at the same rate as the day before. At what time did Elton leave the recording studio on Tuesday?

A. 11:12 am B. 11:22 am C. 11:30 am D. 3:12 pm E. 3:22 pm

Given that 5 parts of the work was done in 4 hours and 4 parts remain to be done. Now, since 5 parts need 4 hours, then 4 parts will need 4/5*4 = 16/5 hours = 3 hours and 12 minutes. Therefore, if the work on Tuesday started at 8:10 am, then it would be finished at 8:10 am + 3 hours and 12 minutes = 11:22 am.

Re: On Monday Elton arrived at the recording studio at 8:00 am [#permalink]

Show Tags

29 Jul 2012, 14:26

Bunuel wrote:

superpus07 wrote:

On Monday Elton arrived at the recording studio at 8:00 am, and left at noon (12:00 pm), after he had finished recording \(\frac{5}{9}\) of his new album. On Tuesday he arrived at 8:10 am, and left after he had completed recording the entire album, while working at the same rate as the day before. At what time did Elton leave the recording studio on Tuesday?

A. 11:12 am B. 11:22 am C. 11:30 am D. 3:12 pm E. 3:22 pm

Given that 5 parts of the work was done in 4 hours and 4 parts remain to be done. Now, since 5 parts need 4 hours, then 4 parts will need 4/5*4 = 16/5 hours = 3 hours and 12 minutes. Therefore, if the work on Tuesday started at 8:10 am, then it would be finished at 8:10 am + 3 hours and 12 minutes = 11:22 am.

On Monday Elton arrived at the recording studio at 8:00 am, and left at noon (12:00 pm), after he had finished recording \(\frac{5}{9}\) of his new album. On Tuesday he arrived at 8:10 am, and left after he had completed recording the entire album, while working at the same rate as the day before. At what time did Elton leave the recording studio on Tuesday?

A. 11:12 am B. 11:22 am C. 11:30 am D. 3:12 pm E. 3:22 pm

Given that 5 parts of the work was done in 4 hours and 4 parts remain to be done. Now, since 5 parts need 4 hours, then 4 parts will need 4/5*4 = 16/5 hours = 3 hours and 12 minutes. Therefore, if the work on Tuesday started at 8:10 am, then it would be finished at 8:10 am + 3 hours and 12 minutes = 11:22 am.

Answer: B.

Hope it's clear.

Thanks, but why not 4/9 parts?

We are told that 5/9 of the work was done on Monday, so 5 parts out of 9 was done and 4 parts are left to be done.
_________________

Re: On Monday Elton arrived at the recording studio at 8:00 am [#permalink]

Show Tags

29 Jul 2012, 14:39

Bunuel wrote:

We are told that 5/9 of the work was done on Monday, so 5 parts out of 9 was done and 4 parts are left to be done.

What I'm thinking about is why is it 4/5*4 instead of 4/9*5? Clearly, I'm wrong. But I can't seem to grasp this particular part. Is it because we have to find how much 4 parts is over 5 parts in terms of time?

We are told that 5/9 of the work was done on Monday, so 5 parts out of 9 was done and 4 parts are left to be done.

What I'm thinking about is why is it 4/5*4 instead of 4/9*5? Clearly, I'm wrong. But I can't seem to grasp this particular part. Is it because we have to find how much 4 parts is over 5 parts in terms of time?

5 parts need 4 hour, so 1 part need 4/5 hours, which means that 4 parts need 4*(4/5) hours.
_________________

Re: On Monday Elton arrived at the recording studio at 8:00 am [#permalink]

Show Tags

14 Jan 2015, 15:06

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

If you're ever confused by "fractional data" that includes measurements (in this case, "hours"), you might be able to avoid doing "fractional math" by converting units. Here's how:

We're told that it takes 4 hours to complete 5/9 of a job.

4 hours = 4(60) = 240 minutes to complete 5/9 of a job

Since 240 = (5/9) of the job 240/5 = 1/9 of the job 48 minutes = 1/9 of the job

From here, figuring out how long it will take to finish the final 4/9 of the job won't be too tough..

48(4) = 192 minutes = 4/9 of the job

192 minutes = 3 hours 12 minutes

It's important to note that we're starting from 8:10 am, so an additional 3 hours 12 minutes takes us to 11:22am

Re: On Monday Elton arrived at the recording studio at 8:00 am [#permalink]

Show Tags

14 Nov 2015, 12:27

he completed 5/9 in 4 hours. knowing this, we can calculate his rate in 1 hour or 5/9*1/4 = 5/36. Each hour, he completes 5 parts of the work. since he worked for 4 hours, he completed 20 parts of the work, leaving 16 parts for the next day. now this gets interesting. 16 parts that's slightly more than 3 hours. We can eliminate answer choices D and E. since 16/5 = 3 with a remainder 1, we can calculate that 1/5 of an hour is 12 minutes. Since he started working on the album at 8:10 AM, after 3hours 12 minutes he finished. 10+12 = 22, thus it must be B, 11:22.

Re: On Monday Elton arrived at the recording studio at 8:00 am [#permalink]

Show Tags

05 Jul 2016, 07:44

superpus07 wrote:

On Monday Elton arrived at the recording studio at 8:00 am, and left at noon (12:00 pm), after he had finished recording \(\frac{5}{9}\) of his new album. On Tuesday he arrived at 8:10 am, and left after he had completed recording the entire album, while working at the same rate as the day before. At what time did Elton leave the recording studio on Tuesday?

A. 11:12 am B. 11:22 am C. 11:30 am D. 3:12 pm E. 3:22 pm

Re: On Monday Elton arrived at the recording studio at 8:00 am [#permalink]

Show Tags

25 Aug 2017, 08:27

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________