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Quant Shortcuts for CAT 2007
by Total Gadha - Sunday, 11 November 2007, 04:23 PM
 

cat 2007 cat 2008 math shortcuts xat 2008 mba 008I have written on this theme before also. But before CAT 2007 happens, I would like to remind all the TGites about these methods once again. What is a shortcut? By shortcuts, I do not mean a sudden inspiration or am erratic method which can be applied to only one or two problems. By shortcut I mean a set method, a pattern which can be repeated again and again. These shortcuts can be learned and applied under pressure also. The reason to apply these shortcuts is one- getting to answers fast and in an easier way than by actually solving the problems. I have discussed two basic methods here which I predominantly use:
1. Examine the options
2. Start small

 

 cat math shortcuts


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Re: Quant Shortcuts for CAT 2007
by the underdog - Sunday, 11 November 2007, 04:52 PM
  Woh! Now I know why cut-offs are high! Its more about presence of mind than sheer mechanical aptitude. A friend who got into IIMB last year recommended the same thing. Look at the options first and see whether the answer is staring at you even without having to solve it. Great stuff TG!! smile
Re: Quant Shortcuts for CAT 2007
by MS . - Sunday, 11 November 2007, 05:55 PM
  Great!


TG a small request although at inappropriate time,please give us gadhas some gyan on DI too,i mean it is just a thought that comes to mind while attempting a set and spending 10 -15 min on it: Should i continue with this one,should i leave,if its cracked then 5 questions!
Simply put when to say good bye to it without messing up the entire section.

You really are a Gem!

Thanks for everything
Re: Quant Shortcuts for CAT 2007
by Suresh Nandigam - Sunday, 11 November 2007, 06:29 PM
  My fear on Geometry has been taken away by this article.
Thanks to TG, great stuff.kiss
Re: Quant Shortcuts for CAT 2007
by Prabhu Narayanan - Sunday, 11 November 2007, 06:33 PM
  Hi TG,
Its really great to read this topic yaar.. Hope this helps us a lot... Awaiting for other two sections.... Bye
Re: Quant Shortcuts for CAT 2007
by TG Team - Sunday, 11 November 2007, 09:22 PM
  Hi TG
That's a nice article but i find it's a totally repeat version.
Anyways nice effort.
One Important Query
Are you deleting previous CAT Preparation articles or moving them.
Please provide the links for the same.
Re: Quant Shortcuts for CAT 2007
by Swam Sinha - Monday, 12 November 2007, 12:50 AM
 

Hey! Great!! Man, n tht too b'fore the D-day, Great inspiration 4 the students, who  r still juggling with the Quantophobiasmile

I appreciate all the efforts put in by TG's, One last request before the CAT, Can u pls. include some more examples like this from prv. yrs. CAT papers

 

 

Re: Quant Shortcuts for CAT 2007
by Anuprita Malik - Monday, 12 November 2007, 10:22 AM
 

koooll tricks.. thanks soo much..

Re: Quant Shortcuts for CAT 2007
by Yogesh Gupta - Monday, 12 November 2007, 02:13 PM
 

Gud work TG, We are expecting more  of these from you

Re: Quant Shortcuts for CAT 2007
by sachin singh - Monday, 12 November 2007, 07:50 PM
  its relly cool tg...you're ttoo tooo guud...tgsome gyan for di alsooooooo pllsssssss
Re: Quant Shortcuts for CAT 2007
by divya kansal - Monday, 12 November 2007, 09:40 PM
 

its too cool tg...

well...i also need some treatise on DI...not fairing well in it.. sad(

Re: Quant Shortcuts for CAT 2007
by shikha tomar - Monday, 12 November 2007, 10:04 PM
 

Thanks TG...great stuff..as usual!!!

and that reminds me...JUST 6 DAYS TO GO BEF CAT...!

*shikha faints*mixed

Re: Quant Shortcuts for CAT 2007
by Amit ... - Tuesday, 13 November 2007, 12:28 AM
  TG

I have been following similar strategies. Your article has added boost to same.

Regards
AM


Re: Quant Shortcuts for CAT 2007
by fundoo bond - Tuesday, 13 November 2007, 01:59 PM
 

hi TG,

    it ws a grt read again...jst 4 days to go n i already feel the twinge... smile

regards,

fundoo

Re: Quant Shortcuts for CAT 2007
by Amit Rodge - Wednesday, 14 November 2007, 01:43 AM
 

Hi Tg,

       Thanks for ur value addition at this point of time..now came to know, our presence of mind also does matter...

thanks once again..smile

Re: Quant Shortcuts for CAT 2007
by santosh kumar - Thursday, 15 November 2007, 02:07 PM
 

Hmm these tricks r cool...

                                       but seems like a copy paste from Cl's quant without maths...smile Also can u provide some gyaan on DI involving similar methods.

Re: Quant Shortcuts for CAT 2007
by San m - Thursday, 15 November 2007, 08:34 PM
  Hi TG,

Nice useful article.

It would be worth mentioning here a few more technics like,

1. If one is good with drawing, s/he may try drawing scaled diagrams for geometry.. N then choose the closest option. Risky but it helps!

2. If the question has variables. then substitute with small nos. like 0 or 1. Then do the same with answer options and then match them..

Cheers & ATB fellas!

Onahigh
Re: Quant Shortcuts for CAT 2007
by Total Gadha - Thursday, 15 November 2007, 10:08 PM
 

Hi Santosh,

What if I tell you that Copy paste happened from TG to the source you mentioned? Check my previous shortcut article that came earlier this year.

Total Gadha

Re: Quant Shortcuts for CAT 2007
by TG Team - Friday, 16 November 2007, 07:54 AM
  Accepted.approve
Re: Quant Shortcuts for CAT 2007
by Mohit Khatri - Wednesday, 20 August 2008, 10:54 AM
  Thanks TG for a well explained article. Trust me friends, but I am able to do atleast 2-3 questions by this way. Hope you also learn to leverage out of it. Hats off to you sir for all your hard work!! PS: Dreams only comes true, when you believe in them.
Re: Quant Shortcuts for CAT 2007
by ankur rustagi - Thursday, 9 October 2008, 05:48 AM
 

Thanks a lot for this wonderful article....

Re: Quant Shortcuts for CAT 2007
by sreejita saha - Thursday, 9 October 2008, 10:50 AM
  A really useful article
Sreejita
Re: Quant Shortcuts for CAT 2007
by siva nagarajan - Thursday, 15 January 2009, 10:13 AM
  Hi TG a great article... can you please give us tips to solve probability problems in a similar manner... w/o needing to solve it too much.,, Thnx for ur help and effort tht u are taking for us...
Re: Quant Shortcuts for CAT 2007
by Prakash jain - Monday, 20 July 2009, 02:39 AM
  "winners dont do diffrent things, they do it diffrently.....you have realy prove that TG...thanks for succh a helpful article..
Re: Quant Shortcuts for CAT 2007
by shiva subramanian - Thursday, 23 July 2009, 09:31 PM
  easily the best article on solving quants i ve ready anywer!!!
Re: Quant Shortcuts for CAT 2007
by Vinu Varghese - Friday, 8 October 2010, 08:46 PM
  Great article sir.. But for the last question
1!+ (2!x2) + (3!x3) = 23 right? and not 25.... but 23/4! does not give this reminder right.....
Re: Quant Shortcuts for CAT 2007
by Ritesh Raman - Saturday, 9 October 2010, 02:25 AM
  I don't have words Sir awesome
Re: Quant Shortcuts for CAT 2007
by RAJESH RAY - Thursday, 25 July 2013, 11:39 PM
  i found it very useful. START SMALL...its simpally amazing!!!!
thnx alot!!
Re: Quant Shortcuts for CAT 2007
by Mihir Pande - Tuesday, 7 January 2014, 01:08 PM
  you have to divide p+2, not just p....so 23+2=25
Re: Quant Shortcuts for CAT 2007
by usman d - Sunday, 9 February 2014, 09:26 AM
  dear admin,

I ddnt understand the circle_punching problem. can u plz explain in detail.....thanq.


Re: Quant Shortcuts for CAT 2007
by TG Team - Wednesday, 26 February 2014, 04:06 PM
 

Hi Usman smile

I don't think that it can be explained more beautifully as it has been done over there above.

See, purpose of this post is not to solve the question actually rather playing with the options.

In first question, it asks about the ratio of area of square after the punch to before the punch. Let it be x = (area of square remaining after punch)/(area of square).

We know that area of the square = 2² = 4, so area of square remaining after punch = 4x.

So area of square punched = 4 - 4x.

Now second question asks about the area of the round punch falling outside of square, let it be y.

It's obvious that if we add the two areas i.e. (4 - 4x) and y, we'll get the area of complete circle which is simply π.

Now you final job is only to check the options given as done beautifully in the article above.

I hope it is clear now. smile

Kamal Lohia