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CAT 2015 – Common Admission Test

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how to calc coefficient of x^100 in (1+x^2+x^4.+......)(1+x^3+x^6+...)(1+x^5+x^10+...) 

  • Notice the exponents of the last multiplicand here: 1 + x.... 13m.
Antidisestablish mentarianism @ritwikism 1

Notice the exponents of the last multiplicand here: 1 + x^5 + x^10 + x^15 + ... x^100. The coefficient of x are 0, 5, 10, ... 100.

Therefore, we need to find the coefficient of x^100, x^95, x^90.... in (1 + x^2 + x^4 + x^6 + ...)(1 + x^3 + x^6 + ...). In other words, we need to find the number of solutions to 2x + 3y = 100, 2x + 3y = 95, 2x + 3y = 90, and so on.

This can be found straight away through the formula for the number of whole number solution of ax + by = c that is: HCF[c/a,c/b]

100:17   95:16     90:16    85:14  80:14     75:13
70:12  65:11   60:11   55:9   50:9  45:8    40:7
35:6   30:6    25:4    20:4   15:3   10:2  5:1  0:1
These are all the possible solutions... sum is 184!


1.5k CAT

Official Verbal Thread CAT 2015

As we are done with CAT 2014 and those who feel that they need to start all over again, and they see IIM as a calling...

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Given below are four sentences or parts of sentences that form a paragraph. Identify the sentence(s) or part(s) of sentence(s) that is/are incorrect in terms of grammar and usage. Then,choose the most appropriate option.

A. Plato, who was born in or around 427 BC and died in 347 BC, was not the first important philosopher of ancient Greek civilization,
B. but he is the first from whom a substantial body of complete works have come down to us.
C. In the Indian tradition the Vedas, and many of the Upanishads are earlier;
D. but of their authors, and how they were composed, we knew next to nothing.

7 people answered this question.
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25.5k General Knowledge CAT

General Knowledge

Welcome to the largest General Knowledge Discussion in the world. With 18,000 questions and counting. Also over 18.4K...

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Asia’s biggest telescope

95 people answered this question.
  Baba ke seedhe prasaran mein rukavat to hai, Magar rukawat ke liye sala koi khed nahi hai 
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Why is number of groups 24 and not 25 (0-24)?

  • Because case of 16,16,16 has already been taken as in Case1. 2h.
  • Yes.Right. Thanks.. 2h.
There is but one rule.Hunt or be hunted! 
Frozen Claws @vijay_kumar7252 241

Because case of 16,16,16 has already been taken as in Case1

F.U . @AryaDutta 46

Yes.Right. Thanks.

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Just took the test in Non-Invigilated Mode:-

OA:- 99.77_52C/73A=138 :-/ #Could have been better if focussed well in DILR 

QA:- 99.95_25C/29A = 72  :)

DILR:- 94.28_10C/16A= 25 I don't know what was happening to me in this section. Could not simply focus on the questions

VA:- 93.49_17C/28A=41 :-| A lot to work on Accuracy here, but I'll take this score for now

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Hey guys,what is the serial no of caste/tribe which is required to be filled in the CAT form? If you open the link beside it,a list of states appear.if you click on the state,a list of castes appear for that state.Now beside the caste/community name,on the left there is a entry no.Is this entry no the serial no?or the serial no is something else.

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What kind of profile is considered good at GLIM Chennai for PGPM. I have an experience of more than 4 years in IT sector and I am planning on giving GMAT in 1st week of JAN. Please guide me through on what would be an appropriate GMAT score to get a call. 

18k CAT Quant CAT

Official Quant Thread for CAT 2014!!

This is the Official CAT 2014 Quantitative preparation group. Solve questions & discuss answers/solutions shortcuts &...

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a+b+c=40 ,   how many intergral solution if 13>a>7

17>b>11   4>c>8

  • @pratiksahoo33 lengthy hai?. 5h.
  • lengthy ni hai but tempo ni hai :stuck out tongue:. 4h.
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PM 12

QA   : 67 (26A/23C)

LRDI : 47 (22A/17C)

VA    : 32 (28A/15C)

OA   : 146 (76A/55C)

  • 2 Likes   4 Comments
  • @DplusD Hehe, my level? That's a joke, I too struggle a l.... 5h.
  • i'm sarcastic most of the time..but i meant that seriousl.... 4h.
Flying under the Radar 
Huey @Huey 2,471

@DplusD Hehe, my level? That's a joke, I too struggle a lot in QA. Trying to improve as well

El Dorado @DplusD 30

i'm sarcastic most of the time..but i meant that seriously You consistently score 99+...that is a level, i really i want to reach one day

But yes..i guess..we both need to improve...May the force be with us!

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Test ID_______QA/DI____VA/LR____OA___AIR






IMS(ID: 99A69662)

SIMCAT 1___99.93___87.73___99.34___NA

SIMCAT 2___99.96__97.27___99.92___NA

SIMCAT 3____94.76___89.1___95.03___761

SIMCAT 4____99.38___60.97____95.63___621


Test ID________QA____DI/LR____VARC____OA___AIR


AIMCAT 1614__99.21__98.62____78.17___98.62__305

AIMCAT 1613__99.13__99.76____96.23___99.8__44

AIMCAT 1612__98.34__98.78____97.64___99.56__76

AIMCAT 1611__99.3___99.19_____97.57____99.75___52


SIMCAT 5 ___98.66___99.43___81.78___98.83___173

SIMCAT 6 ___99.93___99.88___89.79___99.94___9

SIMCAT 7 ___97.61___98.77___67.14___96.88___437

SIMCAT 2.0___99.95___99.9___77.84___99.9___14


SIMCAT 101(Revised)___98.66___99.8___96.3___99.93___NA

  • 1 Like  
I'm down, but I'm not out.  

138 CAT

CAT preperation download materials

HI Everyone :: As is evident from the title of the thread, Downloadable material pertaining to the different sections...

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Hi! does anyone have the manhattan study material for sentence correction for CAt prep and previous CAT papers.

  • please could you send me bro 3d.
  • @ankitrocks It would be really great if you can forward.... 5h.
Rajan Anbu @rajananbazhagan

please could you send me bro 

@kovid.rule28 1


It would be really great if you can forward me the material

14 CAT

CAT All India Study Circle 2015

Discussions on questions, papers, thought processes and much more.

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For a set of particular distinct integral value of a,b,c, and d the equation (n+a)(n+b)(n+c)(n+d)=25 holds.For how many distinct integral values of n does it hold???

A) 0     B) 1    C) 2    D) More than 2

  • Please explain this.. 6h.
Defeat the defeat which try to defeat YU 

416 CAT



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Guys there is a provision for Aimcat that we can advance to enhanced or enhanced with videos. test  in that case i will be allowed to give previous mocks..  but all that will be in previous it won't help me much except that i can practice ..and regarding omet are the basic students eligible for omets..need help..confused ..

  • same question. 6h.

524 CAT

The PaGaLGuY Dream Team 2014

*THE PaGaLGUY Dream Team !!!!!*Most of us joined this place with *one dream*, the dream that we live every moment. We...

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whats up people...Term 1 about to end for us...what about u guys?

2014 Calls: IIM A,C,L,I,K, IIT B, NITIE. Converted C , L,I ,K, IIT B , NITIE  
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is bull percentile accurate? coz my percentile in bull mock and time is miles apart (I know time is still accurate)

  • whts ur %ile in bull mocks.....even time's %iles r not th.... 7h.
  • Percentile doesn't matter. Focus on the score + accuracy.. 7h.
ABIR ROY @Abir1103 266

whts ur %ile in bull mocks.....even time's %iles r not tht accurate

Buckmaster . @muksnigs 159

Percentile doesn't matter. Focus on the score + accuracy.

811 CAT

[2015] [OFFICIAL] IMS Mocks Scores & Discussion - SIMCATS Proctored and Unproctored

The official thread for discussion, sharing scores, strategies for SIMCATS (2015-16)

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SIMCAT 105(R):





  • 5 Likes   13 Comments
  • @SS22 Naa..Impassive bhai :stuck out tongue:. 9h.
  • hehe... try meditation :wink:. 7h.
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how much weightage given to acads ( graduation degree ) in FMS

2. what is minimum eligibility  (% of grad degree) to apply for fms 

(sc category )

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Puyz.! I came across a very important mobile app for all MBA aspirants. Reading newspaper is the most crucial activity which is required to be done while preparing for CAT and sometimes fail to do so just because of unawareness of the previous related news. This app will always update you from the background of story to the latest one.

No Lengthy articles only contextual timelines; one byte at a time.

Try this

NewsBytes - Daily News Digest! - Android Apps on Google Play
NewsBytes - Daily News Digest! - Android Apps on Google Play
All the news you need to know. With context. In bullet points. With images.


  • 1 Like  
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When the application form for IRMA-2016 admissions will be available online?

Until further notice celebrate everything.