It is currently 17 Oct 2017, 17:29

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 June
Open Detailed Calendar

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: 101

Kudos [?]: 186 [0], given: 15

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

16 Sep 2010, 03:49
9
This post was
BOOKMARKED
00:00

Difficulty:

45% (medium)

Question Stats:

68% (01:40) correct 32% (02:04) wrong based on 267 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
[Reveal] Spoiler: OA

Last edited by Bunuel on 25 Sep 2014, 00:22, edited 1 time in total.
Renamed the topic, edited the question and added the OA.

Kudos [?]: 186 [0], given: 15

Retired Moderator
Joined: 02 Sep 2010
Posts: 793

Kudos [?]: 1185 [3], given: 25

Location: London
Re: The relationship between quantities m and n is expressed by the equati [#permalink]

Show Tags

16 Sep 2010, 03:55
3
KUDOS
2
This post was
BOOKMARKED
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
_________________

Kudos [?]: 1185 [3], given: 25

Manager
Joined: 17 Apr 2010
Posts: 97

Kudos [?]: 58 [3], given: 12

Re: The relationship between quantities m and n is expressed by the equati [#permalink]

Show Tags

16 Sep 2010, 14:31
3
KUDOS
1
This post was
BOOKMARKED
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

Kudos [?]: 58 [3], given: 12

SVP
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1853

Kudos [?]: 2616 [0], given: 193

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, 01:48
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

Kudos [?]: 2616 [0], given: 193

Senior Manager
Joined: 20 Aug 2015
Posts: 396

Kudos [?]: 335 [2], given: 10

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, 23:46
2
KUDOS
Expert's post
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
_________________

Reach out to us at bondwithus@gmatify.com

Kudos [?]: 335 [2], given: 10

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 16760

Kudos [?]: 273 [0], given: 0

Re: The relationship between quantities m and n is expressed by the equati [#permalink]

Show Tags

05 Oct 2017, 12:18
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.
_________________

Kudos [?]: 273 [0], given: 0

Re: The relationship between quantities m and n is expressed by the equati   [#permalink] 05 Oct 2017, 12:18
Display posts from previous: Sort by