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

It is currently 19 Oct 2019, 08:06

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

Please solve the middle question with steps

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
Joined: 14 Jun 2017
Posts: 10
Please solve the middle question with steps  [#permalink]

Show Tags

New post 20 Jun 2017, 13:59
Image
SVP
SVP
avatar
B
Joined: 06 Nov 2014
Posts: 1873
Re: Please solve the middle question with steps  [#permalink]

Show Tags

New post 21 Jun 2017, 06:31
aditibishnoi wrote:
Image

I would be happy to help. However, it would have been great if could have typed the question.

Total students = Band only + Orchestra only + Both band and orchestra;

Given, Band only + Orchestra only = 80% and Band only = 50%
Hence Orchestra only = 30%.

Hence total students in Band = 100% Orchestra only = 70%
We are told that 70% of Total students = 119

Hence Total students = 170
Orchestra only = 30% of 170 = 51.

Correct Option: B

it is always a best practice to search for a question before posting it again
Intern
Intern
avatar
Joined: 14 Jun 2017
Posts: 10
Re: Please solve the middle question with steps  [#permalink]

Show Tags

New post 26 Jun 2017, 00:01
How do I search for the question?
Intern
Intern
avatar
Joined: 14 Jun 2017
Posts: 10
Re: Please solve the middle question with steps  [#permalink]

Show Tags

New post 26 Jun 2017, 00:02
It is written tht 50% of total is 119. And not 70%.
How did you get tht?
Intern
Intern
avatar
Joined: 14 Jun 2017
Posts: 10
Re: Please solve the middle question with steps  [#permalink]

Show Tags

New post 26 Jun 2017, 00:11
Also I'd like to mention that there are no formulas given for posting through an app.
An image sign is given,hence I took a picture of the question instead of typing it.
SVP
SVP
avatar
B
Joined: 06 Nov 2014
Posts: 1873
Re: Please solve the middle question with steps  [#permalink]

Show Tags

New post 27 Jun 2017, 10:11
You can search for any question form the search bar by typing in a few words of the question.
Regarding the question, it says that 50% on the students are in Band only.

Hope this helps!
Intern
Intern
avatar
B
Joined: 01 May 2017
Posts: 7
Re: Please solve the middle question with steps  [#permalink]

Show Tags

New post 05 Jul 2017, 20:01
Hi,
Please see the solution in the image. Let me know if you need further clarification.
Thanks,
Attachments

New Doc 12_1.jpg
New Doc 12_1.jpg [ 712 KiB | Viewed 720 times ]

Intern
Intern
avatar
B
Joined: 31 Jul 2013
Posts: 14
Location: Viet Nam
Concentration: General Management, Entrepreneurship
GMAT 1: 650 Q49 V28
GPA: 3.46
WE: Sales (Computer Software)
GMAT ToolKit User
Re: Please solve the middle question with steps  [#permalink]

Show Tags

New post 08 Jul 2017, 21:32
Band Not Band Total
Orch a b
Not O c d
Total 119 x

What you have from the question, write down:
c + b = 0.8x (80% of students are only in 1 group)
a + c = 119 (a + c are students in band, not 0)
c = 0.5x (50% of students are band only)
a + b + c = x (all of students are in band, or or both, that means d = 0)

Solve you have: b = 0.8x - 0.5x = 0.3x (1)
a + b + c = x <=> 119 - c + b + c = x <=> b = x - 119 (2)
From (1) and (2) you have b = 51. Answer B
GMAT Club Bot
Re: Please solve the middle question with steps   [#permalink] 08 Jul 2017, 21:32
Display posts from previous: Sort by

Please solve the middle question with steps

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

Moderator: souvonik2k






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