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

 It is currently 22 Feb 2019, 04:27

### 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

## Events & Promotions

###### Events & Promotions in February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
• ### Free GMAT RC Webinar

February 23, 2019

February 23, 2019

07:00 AM PST

09:00 AM PST

Learn reading strategies that can help even non-voracious reader to master GMAT RC. Saturday, February 23rd at 7 AM PT
• ### FREE Quant Workshop by e-GMAT!

February 24, 2019

February 24, 2019

07:00 AM PST

09:00 AM PST

Get personalized insights on how to achieve your Target Quant Score.

# The relationship between quantities m and n is expressed by the equati

Author Message
TAGS:

### Hide Tags

Manager
Status: GMAT Preperation
Joined: 04 Feb 2010
Posts: 90
Concentration: Social Entrepreneurship, Social Entrepreneurship
GPA: 3
WE: Consulting (Insurance)
The relationship between quantities m and n is expressed by the equati  [#permalink]

### Show Tags

Updated on: 24 Sep 2014, 23:22
14
00:00

Difficulty:

45% (medium)

Question Stats:

67% (02:13) correct 33% (02:14) wrong based on 324 sessions

### HideShow timer Statistics

The relationship between quantities m and n is expressed by the equation 11m = 5(n - 42). If the difference between the two chosen values of n is 30, what is the difference in the corresponding values of m?

A. 30/11
B. 42/11
C. 60/11
D. 150/11
E. 14

Source: Manhattan Review

Originally posted by vanidhar on 16 Sep 2010, 02:49.
Last edited by Bunuel on 24 Sep 2014, 23:22, edited 1 time in total.
Renamed the topic, edited the question and added the OA.
Manager
Joined: 17 Apr 2010
Posts: 57
Re: The relationship between quantities m and n is expressed by the equati  [#permalink]

### Show Tags

16 Sep 2010, 13:31
6
1
Another Simple way

11m=5(n-42)

Assume n = 42 to make one side equal to 0
then 11m=0
and m = 0

Repeat it by assuming n as 42+30 i.e 72
11m- 5(72-42)
11m=150
m=150/11

diff = 150/11 - 0 = 150/11
##### General Discussion
Retired Moderator
Joined: 02 Sep 2010
Posts: 762
Location: London
Re: The relationship between quantities m and n is expressed by the equati  [#permalink]

### Show Tags

16 Sep 2010, 02:55
4
2
say the sets of values are m1,n1 and m2,n2

11m1 = 5(n1-42)
11m2 = 5(n2-42)

Subtracting

11(m1-m2)=5(n1-n2)

So m1-m2 = (5*30)/11

OR if you are familiar with differential calculus, you can get from the equation straight away by differentiating that :

$$11 dm = 5 dn$$
and hence m = 150/11
_________________
SVP
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1820
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Re: The relationship between quantities m and n is expressed by the equati  [#permalink]

### Show Tags

02 Oct 2014, 00:48
tiruraju wrote:
Another Simple way

11m=5(n-42)

Assume n = 42 to make one side equal to 0
then 11m=0
and m = 0

Repeat it by assuming n as 42+30 i.e 72
11m- 5(72-42)
11m=150
m=150/11
diff = 150/11 - 0 = 150/11

Did in the same way

Placing value of n = 42 makes the resultant zero

So, no need of subtraction after placing n = 72; results are direct
_________________

Kindly press "+1 Kudos" to appreciate

Senior Manager
Joined: 20 Aug 2015
Posts: 388
Location: India
GMAT 1: 760 Q50 V44
Re: The relationship between quantities m and n is expressed by the equati  [#permalink]

### Show Tags

18 Oct 2015, 22:46
2
Assume the values to be M1, M2 and N1, N2

11M1 = 5(N1-42) - (i)
11M2 = 5(N2-42) - (ii)

Subtracting (ii) from (i)

11(M1-M2)=5(N1-N2) - 42 + 42

Putting the value of N1 - N2 = 30
Hence, M1-M2 = (5*30)/11 = 150/11

Option D
Non-Human User
Joined: 09 Sep 2013
Posts: 9887
Re: The relationship between quantities m and n is expressed by the equati  [#permalink]

### Show Tags

23 Jan 2019, 16:00
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.
_________________
Re: The relationship between quantities m and n is expressed by the equati   [#permalink] 23 Jan 2019, 16:00
Display posts from previous: Sort by