GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

It is currently 07 Jul 2020, 08:54

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

Rusty with maths

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Intern
Intern
avatar
Joined: 21 Feb 2019
Posts: 1
Rusty with maths  [#permalink]

Show Tags

New post 30 May 2020, 02:39
1
I have started with quants, and straight away went for Number properties MGMAT. I am able to grasp 60-70% of the content.

Is it the right approach?
Please guide and share source where I could practice Number properties specific questions?
My OG is on the way, may be once it is with me I will try questions there too.

Posted from my mobile device
Director
Director
avatar
V
Joined: 22 Feb 2018
Posts: 780
GMAT ToolKit User
Re: Rusty with maths  [#permalink]

Show Tags

New post 30 May 2020, 07:10
1
You can use below link to practice more questions from the forum questions directory.

https://gmatclub.com/forum/search.php?view=search_tags
Senior Manager
Senior Manager
avatar
D
Joined: 29 Oct 2019
Posts: 373
Re: Rusty with maths  [#permalink]

Show Tags

New post 30 May 2020, 07:17
1
Going through the Manhattan prep strategy guides to master concepts for quant seems an excellent way to start. Then, you can practice a specific chapter from OGs with the timer at the GMAT Club and see the solution of experts. The link below must help you to find particular types of problems from diverse sources:

https://gmatclub.com/forum/search.php?view=search_tags
Intern
Intern
avatar
B
Joined: 14 Oct 2017
Posts: 38
Concentration: Finance, Real Estate
GPA: 3.2
Re: Rusty with maths  [#permalink]

Show Tags

New post 30 May 2020, 07:40
1
Yes that is probably the right way .good luck on your prep journey

Posted from my mobile device
Manager
Manager
avatar
B
Joined: 05 Apr 2017
Posts: 57
Re: Rusty with maths  [#permalink]

Show Tags

New post 30 May 2020, 09:23
Hi,

I am looking for a dedicated study buddy who is planning to take GMAT in July or August, and targeting a score of 750+.
If anyone is interested, please connect with me.

Thanks
Sachin

Posted from my mobile device
Intern
Intern
User avatar
B
Joined: 28 Oct 2018
Posts: 4
Location: India
Concentration: General Management, International Business
Re: Rusty with maths  [#permalink]

Show Tags

New post 05 Jun 2020, 04:09
Hi Bunuel and bb sir,

I need your help to solve the following equation. It is part of a larger DS question.

|X| + X^2 = 2X

My solution is:

If assume cases here:
1. |X| = X
then the equation becomes >>> X+X^2 =2X
=X^2 -X = 0

= X(X-1) = 0

2 possible values of X that are X=0 or X =1


Case 2: |X| = - X

now, LHS is -X + X^2

Should RHS also be -2X or it should remain +2X because the answer changes with this consideration.

Thanks in advance.
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 65062
Re: Rusty with maths  [#permalink]

Show Tags

New post 05 Jun 2020, 04:50
1
2
AkankshaGMAT1989 wrote:
Hi Bunuel and bb sir,

I need your help to solve the following equation. It is part of a larger DS question.

|X| + X^2 = 2X

My solution is:

If assume cases here:
1. |X| = X
then the equation becomes >>> X+X^2 =2X
=X^2 -X = 0

= X(X-1) = 0

2 possible values of X that are X=0 or X =1


Case 2: |X| = - X

now, LHS is -X + X^2

Should RHS also be -2X or it should remain +2X because the answer changes with this consideration.

Thanks in advance.


You are replacing |x| with -x, when x < 0, but why should you replace x with -x? So, the answer to your question is NO.

|x| + x^2 = 2x

When x < 0, then |x| = -x, and in this case we'd get -x + x^2 = 2x, which gives x = 0 or x = 3. Discard both solutions because neither 0 nor 3 is in the range we consider (x < 0).

When x >= 0, then |x| = x, and in this case we'd get x + x^2 = 2x, which gives x = 0 or x = 1. Both solutions are valid because both 0 and 1 are in the range we consider (x >= 0).

So, |x| + x^2 = 2x has two solutions only x = 0 or x = 1.
_________________
Stern School Moderator
User avatar
S
Joined: 26 May 2020
Posts: 268
Concentration: General Management, Technology
WE: Analyst (Computer Software)
CAT Tests
Re: Rusty with maths  [#permalink]

Show Tags

New post 05 Jun 2020, 13:55
1
Harisali wrote:
I have started with quants, and straight away went for Number properties MGMAT. I am able to grasp 60-70% of the content.

Is it the right approach?
Please guide and share source where I could practice Number properties specific questions?
My OG is on the way, may be once it is with me I will try questions there too.

Posted from my mobile device

You are on a right track . :thumbsup: :thumbsup: I would suggest to go-through the gmat club math book and ques from each topic from gmatclub to solidify your learning and application .
_________________
Thank you.
Regards,
Ashish A Das.

The more realistic you are during your practice, the more confident you will be during the CAT.
GMAT Club Bot
Re: Rusty with maths   [#permalink] 05 Jun 2020, 13:55

Rusty with maths

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





cron

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