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.
It appears that you are browsing the GMAT Club forum unregistered!
Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club
Registration gives you:
Tests
Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.
Applicant Stats
View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more
Books/Downloads
Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!
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: Very easy but still got wrong.. Need Your answer [#permalink]
08 Sep 2010, 06:41
10
This post received KUDOS
Expert's post
17
This post was BOOKMARKED
Guduna wrote:
For all positive integers m, m*= 3m when m is odd and m*=1/2 when m is even. Which of the following is equivalent to 9* x 6* 81 54 36 27 18
Pleas post the questions in their original form.
For all positive integers m, [m]=3m when m is odd and [m]=(1/2)*m when m is even. What is [9]*[6] equivalent to?
A. [81] B. [54] C. [37] D. [27] E. [18]
Notice that [] is just some function such that "[m]=3m when m is odd and [m]=(1/2)*m when m is even".
So, [m]=3m when m is odd, [m]=(1/2)*m when m is even. As 9 is odd then [9] equals to 3*9=27; As 6 is even then [6] equals to 1/2*6=3;
So [9]*[6]=27*3=81. Note that numbers in the answer choices are also in boxes, so we have: [m]=81. m could be 27 (in this case as 27 is odd [27]=3*27=81) OR 162 (in this case as 162 is even [162]=162/2=81) --> only [27] is in the answer choices.
Re: Very easy but still got wrong.. Need Your answer [#permalink]
03 Apr 2012, 05:53
Bunuel wrote:
Guduna wrote:
For all positive integers m, m*= 3m when m is odd and m*=1/2 when m is even. Which of the following is equivalent to 9* x 6* 81 54 36 27 18
Pleas post the questions in their original form.
For all positive integers m, [m]=3m when m is odd and [m]=(1/2)*m when m is even. What is [9]*[6] equivalent to?
A. [81] B. [54] C. [37] D. [27] E. [18]
Note that [] is just some function such that "[m]=3m when m is odd and [m]=(1/2)*m when m is even".
So, [m]=3m when m is odd, [m]=(1/2)*m when m is even. As 9 is odd then [9] equals to 3*9=27; As 6 is even then [6] equals to 1/2*6=3;
So [9]*[6]=27*3=81. Note that numbers in the answer choices are also in boxes, so we have: [m]=81. m could be 27 (in this case as 27 is odd [27]=3*27=81) OR 162 (in this case as 162 is even [162]=162/2=81) --> only [27] is in the answer choices.
Answer: D.
i had selected A, but then realised my mistake....Buneal the god....wounderful explanation.... _________________
Regards, Harsha
Note: Give me kudos if my approach is right , else help me understand where i am missing.. I want to bell the GMAT Cat
Re: Very easy but still got wrong.. Need Your answer [#permalink]
13 Jun 2014, 18:13
Bunuel wrote:
Guduna wrote:
For all positive integers m, m*= 3m when m is odd and m*=1/2 when m is even. Which of the following is equivalent to 9* x 6* 81 54 36 27 18
Pleas post the questions in their original form.
For all positive integers m, [m]=3m when m is odd and [m]=(1/2)*m when m is even. What is [9]*[6] equivalent to?
A. [81] B. [54] C. [37] D. [27] E. [18]
Notice that [] is just some function such that "[m]=3m when m is odd and [m]=(1/2)*m when m is even".
So, [m]=3m when m is odd, [m]=(1/2)*m when m is even. As 9 is odd then [9] equals to 3*9=27; As 6 is even then [6] equals to 1/2*6=3;
So [9]*[6]=27*3=81. Note that numbers in the answer choices are also in boxes, so we have: [m]=81. m could be 27 (in this case as 27 is odd [27]=3*27=81) OR 162 (in this case as 162 is even [162]=162/2=81) --> only [27] is in the answer choices.
Re: Very easy but still got wrong.. Need Your answer [#permalink]
14 Jun 2014, 00:50
Expert's post
russ9 wrote:
Bunuel wrote:
Guduna wrote:
For all positive integers m, m*= 3m when m is odd and m*=1/2 when m is even. Which of the following is equivalent to 9* x 6* 81 54 36 27 18
Pleas post the questions in their original form.
For all positive integers m, [m]=3m when m is odd and [m]=(1/2)*m when m is even. What is [9]*[6] equivalent to?
A. [81] B. [54] C. [37] D. [27] E. [18]
Notice that [] is just some function such that "[m]=3m when m is odd and [m]=(1/2)*m when m is even".
So, [m]=3m when m is odd, [m]=(1/2)*m when m is even. As 9 is odd then [9] equals to 3*9=27; As 6 is even then [6] equals to 1/2*6=3;
So [9]*[6]=27*3=81. Note that numbers in the answer choices are also in boxes, so we have: [m]=81. m could be 27 (in this case as 27 is odd [27]=3*27=81) OR 162 (in this case as 162 is even [162]=162/2=81) --> only [27] is in the answer choices.
Re: For all positive integers m, [m]=3m when m is odd [#permalink]
10 Dec 2014, 11:35
Bunuel wrote:
Guduna wrote:
For all positive integers m, m*= 3m when m is odd and m*=1/2 when m is even. Which of the following is equivalent to 9* x 6* 81 54 36 27 18
Pleas post the questions in their original form.
For all positive integers m, [m]=3m when m is odd and [m]=(1/2)*m when m is even. What is [9]*[6] equivalent to?
A. [81] B. [54] C. [37] D. [27] E. [18]
Notice that [] is just some function such that "[m]=3m when m is odd and [m]=(1/2)*m when m is even".
So, [m]=3m when m is odd, [m]=(1/2)*m when m is even. As 9 is odd then [9] equals to 3*9=27; As 6 is even then [6] equals to 1/2*6=3;
So [9]*[6]=27*3=81. Note that numbers in the answer choices are also in boxes, so we have: [m]=81. m could be 27 (in this case as 27 is odd [27]=3*27=81) OR 162 (in this case as 162 is even [162]=162/2=81) --> only [27] is in the answer choices.
Re: For all positive integers m, [m]=3m when m is odd [#permalink]
24 Mar 2015, 04:11
Dang, I cross-checked this answer and I was thinking, the GMAT would surely test harder questions on this exam and as it was the second question, it would not be this easy..
Well, I got stung, lesson learned, pay as much attention to answer choices as to the question itself... the dam box
gmatclubot
Re: For all positive integers m, [m]=3m when m is odd
[#permalink]
24 Mar 2015, 04:11
As I’m halfway through my second year now, graduation is now rapidly approaching. I’ve neglected this blog in the last year, mainly because I felt I didn’...
Hilary Term has only started and we can feel the heat already. The two weeks have been packed with activities and submissions, giving a peek into what will follow...
Ninety-five percent of the Full-Time Class of 2015 received an offer by three months post-graduation, as reported today by Kellogg’s Career Management Center(CMC). Kellogg also saw an increase...