GmatPrep Question pack 1 question- 9 am to 5:55 pm inclusive

BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

This topic has expert replies

Post new topic Post Reply

Previous Topic Next Topic

__neo: Newbie | Next Rank: 10 Posts; Posts: 9; Joined: Fri Feb 10, 2012 9:41 am

GmatPrep Question pack 1 question- 9 am to 5:55 pm inclusive

by __neo » Mon May 28, 2012 7:49 am

Please see the attached gmat prep ques pack 1 question. i am unable to understand how the groups of 5 mins between 9 and 5:55 are taken as 12*9=108.

when i solved, i did 12*8 +11 = 107

Secondly, can some please elaborate how to comprehend such language, what does inclusive mean here? how do we know that 30 tickets were sold between 5:55 pm and 6 pm?

Attachments

Quote

Source: Beat The GMAT — Problem Solving | Mon May 28, 2012 7:49 am

GMAT/MBA Expert

Anurag@Gurome: GMAT Instructor; Posts: 3835; Joined: Fri Apr 02, 2010 10:00 pm; Location: Milpitas, CA; Thanked: 1854 times; Followed by:523 members; GMAT Score:770

by Anurag@Gurome » Mon May 28, 2012 8:18 am

__neo wrote:Secondly, can some please elaborate how to comprehend such language, what does inclusive mean here?

Inclusive means including both ends of the range.
For instance, here inclusive means tickets were sold both at 9:00AM and 5:55PM. That's why number of times tickets were sold is (8*12 + 11 + 1) = 108. That extra plus one is to include both ends of the range.

For example, there is one 5 minute interval between 9:00AM and 9:05AM. But tickets were sold both at 9:00AM and 9:05AM, i.e. 2 times.

Hope that helps.

__neo wrote:how do we know that 30 tickets were sold between 5:55 pm and 6 pm?

I'm afraid that I don't understand this one. Tickets were sold up to 5:55PM. Why are you bringing 6:00PM in the picture?

According to the question, 30 tickets were sold every 5 minutes from 9:00AM to 5:55PM, inclusive. That's how we know 30 tickets were sold every 5 minutes.

Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/

Quote

__neo: Newbie | Next Rank: 10 Posts; Posts: 9; Joined: Fri Feb 10, 2012 9:41 am

by __neo » Mon May 28, 2012 8:31 am

Hi Anurag

thanks a lot for your reply, totally appreciate it.

I am still unclear on one thing. The question states that 30 tickets are sold every 5 minutes.

So that means between 9:00 to 9:05 -> 30 tickets are sold ,and between 9:05 - 9:10 -> 30 tickets are sold.

Now when you say that between 9:00 and 9:05 actually 60 tickets are sold. are you assuming that 30 tickets that are sold between 9:05 and 9:10 are sold exactly between 9:05:00 and 9:05:59 ?

Can you please clarify on how 60 tickets are sold between 9:00 and 9:05 ?

Regards

Quote

GMAT/MBA Expert

Anurag@Gurome: GMAT Instructor; Posts: 3835; Joined: Fri Apr 02, 2010 10:00 pm; Location: Milpitas, CA; Thanked: 1854 times; Followed by:523 members; GMAT Score:770

by Anurag@Gurome » Mon May 28, 2012 8:37 am

__neo wrote:...I am still unclear on one thing. The question states that 30 tickets are sold every 5 minutes.

So that means between 9:00 to 9:05 -> 30 tickets are sold ,and between 9:05 - 9:10 -> 30 tickets are sold.

Now when you say that between 9:00 and 9:05 actually 60 tickets are sold. are you assuming that 30 tickets that are sold between 9:05 and 9:10 are sold exactly between 9:05:00 and 9:05:59 ?

Can you please clarify on how 60 tickets are sold between 9:00 and 9:05 ?

Okay. Let me try to explain.

It's not like 30 or 60 tickets were sold between 9:00AM and 9:05AM. It's more like 30 tickets were sold at 9:00AM. Then the ticket counter is closed. Again at 9:05AM, the counter is opened and 30 tickets were sold. Then the ticket counter is closed again and so on.

Hope that helps.

Quote

__neo: Newbie | Next Rank: 10 Posts; Posts: 9; Joined: Fri Feb 10, 2012 9:41 am

by __neo » Mon May 28, 2012 8:51 am

Yes the way you have explained now it is absolutely clear! Thanks !

But isnt this language convoluted? or is it my lack of comprehension?

I have seen so many time that GMAT uses such language(in quant) ! I just hope i am able to comprehend them clearly on the G-day.

Thanks and regards again