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.

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:

Re: Average.GmatPrep.Mean of salary [#permalink]
30 Mar 2010, 22:00

divakarbio7 wrote:

we can solve this question using weighted averages. The formula we use in weighted average is N1 / N2 = D2 / D1 ................................................ Hope this will help..correct me if my reasoning is wrong!!!!!

Wow, that was pretty cool.

I have just forgotten this formula of weighted average - N1/N2 = D2/D1. I can't seem to recollect it. Can you please shed some more light on it ? Like, what is N1, N2, & how it works ?

Re: Average.GmatPrep.Mean of salary [#permalink]
30 Mar 2010, 22:24

Hi,

you can get more information about weighted average in Manhattan Book 5 - word translations - chapter 6. For your reference i have attached the chapters.... ( refer weighted average 1 & 2 )

Attachments

Weighted Avergae2.gif [ 51.88 KiB | Viewed 1293 times ]

Weighted Avergae1.gif [ 50.48 KiB | Viewed 1291 times ]

Re: Average.GmatPrep.Mean of salary [#permalink]
31 Mar 2010, 01:11

@ divakarbio7

Thanks for your fantastic efforts. I still have some doubts if you can clear.

Let say the average salary is x, then managers salary is x-5000 and directors is x+15000

now you have taken the ratio of 15000 to 5000. now lets assume the managers salary is x+5000 in statement 1 (managers earn 5000 more than the average) and directors earn same x+15000. Then what would be the answer?

Can you please mention the formula with explanation. That would be very helpful!

Re: Average.GmatPrep.Mean of salary [#permalink]
01 Apr 2010, 03:03

hi

if we assume the average salary of Manager is 5000+, & as given Directors will be 15000+, then as per my knowledge we cannot use the weighted average formula. However I am not sure as to how to solve your questions. sorry....

you can also refer below URL, where the same problem is solved in different approach gmat-prep-test-92076.html

Re: Average.GmatPrep.Mean of salary [#permalink]
01 Apr 2010, 03:32

divakarbio7 wrote:

hi

if we assume the average salary of Manager is 5000+, & as given Directors will be 15000+, then as per my knowledge we cannot use the weighted average formula. However I am not sure as to how to solve your questions. sorry....

you can also refer below URL, where the same problem is solved in different approach gmat-prep-test-92076.html

i got the solution i wanted on the link. Thanks again _________________

Success is my Destiny

gmatclubot

Re: Average.GmatPrep.Mean of salary
[#permalink]
01 Apr 2010, 03:32