41s ago 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...
Happy diwali to all DTians+UDTians+fellow puys !! Also best of luck for the coming MBA exams season. I hope many get into their desired MBA college.
This is the Official CAT 2014 Quantitative preparation group. Solve questions & discuss answers/solutions shortcuts &...
Four persons Bhavya, Kavya, Navya and Shravya went to a party. Each of them arrived at the party in a car of a different colour from among Green, Red, Blue and Yellow. Also, each of them was wearing a dress of a different colour from among Green, Red, Blue and Yellow and goggles of a different colour from among Green, Red, Blue and Yellow. Further, each of them sat in a chairs of a different colour from among Green, Red, Blue and Yellow.
It is also known that for none of the four persons was the colour of any two (of the above mentioned) items, belonging to that person, the same.
The following information is also known about them:
(i) The person who came in a red coloured car was wearing green coloured goggles.
(ii) The person who was wearing a red coloured dress sat on a green coloured chair.
(iii) Shravya, who came in a green colored car, sat in a blue colored chair.
If Navya is wearing a blue colored dress what is the color of the goggles that she was wearing?
@chocomota Red dress-Green chair => Shravya Blue chair therefore she is wearing Yellow dress and Red coloured goggle.
from i, Red car -green goggle => Blue dress since Yellow is used by Shravya(Green car)..also this person must be Navya as she is wearing Blue coloured dress only.
11m ago CAT
[2014] CL Mock CAT 15 Scores and Discussion (DON'T OPEN UNLESS ATTEMPTED)Discussion related to CL Mock CAT 15.
could anyone tell me how many ppl gave mock 16 on an average and why doesnt cl give the number of ppl registered fr the test?
They don't give that info for unproctered mocks.
They don't give the number because it'll be so low, it'll be fucking embarrassing.
hahhaha.. have you given mock 16? was it easier than cat or actual level?
11m ago CAT Verbal CAT
Official verbal ability thread for CAT 2014Amidst IIFT,NMAT and other exams preparation we have come so far and near to CAT 2014. Not so many Days (Literally) f...
Industry standard No. 23 stipulates that the dependants of a worker who suffers injuries or death due to accident inside the factory within his working hours is to be adequately compensated by the company. A worker who stays for five minutes after his stipulated working hours to wind up his work, suffers an accident and is injured.
The answer to which of the following questions is least inappropriate in helping to determine whether or not the company is liable to pay compensation?
a)Is winding up of the work considered a part of the duty expected to be performed by the worker?
b)Is the time of the accident within the buffer time, if any, within which, if the accident occurs, the company is liable to compensate the victim?
c)Does the factory have a system of indicating to a worker that his day's work is over?
d)Was the company following all safety measures to prevent accidents at work spots?
D imo because the para states the worker is to be compensated if he is injured during work hours at the workplace. D didn't ask any thing related to time
19m ago CAT
[2014] Mock Score RepositoryHi All,With new season about to kick off and coachings rolling out the mock test series for another journey to covete...
AIMCAT
1520 N - 97.13%
1519 N - 149 - ( result awaited)
1516 N - 97.71 %
1515 N - 98.3 %
1514 N - not eligible
1513 N - 99.53 %
1512 N - 98.91 %
1511 N - not eligible
1510 N - 97.48 %
1509 N - 98.61 %
1508 N - 98.24 %
1507 N - 99.51 %
1506 N - 98.99 %
1505 N - 158 (result awaited)
35m ago CAT
Para Completion and Sentence Deletion CAT 2013Please continue here for the para completion/sentence deletion discussions for CAT 2013 Links of previous year 2012 L...
this question was asked in cl mock but they have given two answers for this....
The belief in temporary incarnation or inspiration is worldwide. Certain people are supposed to be possessed from time to time by a spirit or deity; while the possession lasts, their own personality lies in abeyance, the presence of the spirit is revealed by convulsive shivering and shaking of the man's whole body, by wild gestures and excited looks, all of which refer, not to the man himself, but to the spirit which has entered into him; and in this abnormal state all his utterances are accepted as the voice of the god or spirit dwelling in him and speaking through him. _____________________
A In this respect, there was a striking resemblance between the military tactics of the Polynesians, and those of the celebrated nations of ancient Greece.
b Thus, for example, in the Sandwich Islands, the king, imitating the god, uttered the responses of the oracle from his concealment in a frame of wickerwork.
c As soon as the god was supposed to have entered a man, the latter became violently agitated, and worked himself up to the highest pitch of apparent frenzy.
d In this state, he often rolled on the earth, foaming at the mouth, and revealed his desires.
Between B and C, B is a better option because C has already been stated in the passage(presence of the spirit is revealed by convulsive shivering and shaking of the man's whole body, by wild gestures and excited looks..) and is hence a mere repetition.
36m ago CAT
AIMCAT 1505-New: Scores And Discussion ~ (Non-Invigilated: Oct 21-24, 2014)TIME's mock CAT
Total: 62C/73A = 175
Happy Diwali!
DT '14
Be the change you wish to see in the world
http://www.pagalguy.com/discussions/2014-mock-score-repository-25116679/20090363
38m ago CAT
AIMCAT 1519-New: Scores And Discussion ~ (Non-Invigilated: Oct 20-23, 2014)TIME's mock CAT
Okay. Just to understand, in this test everyone seems to be scoring more than 140 ( as per the posts below) . Is it because the test was easy or because it's a repetition of the old test?
how much did u score buddy? i wish only those people write this test who have not seen these questions before!!
41m ago CAT
All I wanted to Speak about CAT*Download the FREE 'The Best of All I Wanted to speak about CAT' ebook*, a compendium of the best posts on this threa...
I wish I knew these a couple of years back- My
ruminations that may help you
I am working "in a stable job" since 2009. I gave CAT 4 times from 2010 till 2013.U may ask y CAT? Every endeavor in life has a trigger moment and mine goes like this, I gave CAT because I was content with my job and so my mind thought this way-being content means I am rotting and starting to lose intellectual skills. I was self deluding myself. Around the same time a intelligent and trustworthy friend of mine(who is not from IIM-C) told me how cool IIM-C is, how vibrant the campus is and what an IIM-C alumini can do. Vaguely I remember him telling me "Indira Nooyi...math and extra curricular heaven...place to be among all IIM's" Road to IIM-C is named CAT so I decided CAT it is!
Trigger moment aside other reasons include,
1. More opportunities to collaborate with a(the) intellectual, like minded and ethnically diverse opposite sex. I was shy and from a boy's school. I didnt use opportunities to change in this area during Undergrad.
2."Mr.ABC from IIM" tag means u r intelligent and branded for life that way. A sense of accomplishment. Self deception again.
3.FB being the way of life reading newsfeeds of close and many times unknown college/school friends which read like, "coverted the coveted IIM call" "feeling elated" "by gods grace..." made me feel,
(a)I was missing out
(b)I didnt do enough and was being dumb
(c)When will I get to post these messages? In short I felt "peer pressure"
Out with all the correct reasons for Y I took up CAT I must admit that all the time (during my 4 attempts) I kept churning out reasons other than these honest ones to keep me going. They did just that "kept me going"
After 2 long years of preparation I became very confident of acing CAT from 2013. Particularly last year, 2014, the year I came very close. But somehow I didnt get there.
Out of CAT fever and now pursuing different things in life I was subconciously introspecting the causes for my not clinching the exam. And today morning I couldnt work and couldnt think of doing anything other than writing my thoughts.
Coming to what you guys must have come to read in the first place. Maybe someone, someone like "me of 2012", may be able to put his senses in the right place.
Here I go,
1.There is no perfect study material or perfect place (tution) to learn Quant, English or DI. No one can teach you what is required to ace CAT. Stop searching and reading forums on the above subjects. For Quant,DI-Solve questions For English- I dont know. I did very well(i am being v humble here) in this section of CAT but lost out last year due to verbal. Maybe reading helps. I never read to improve english and I only read those which interested me. I started reading v late, 3rd yr in college. Never too late and its always difficult to begin with, not reading anything.
2.Excellence is incremental and only happens step by step. "Camera of Iphone 6 plus is great but IPhone 1st gen had the dumbest of all if you look back" Small steps towards improving ur aptitude is the correct way. Dont expect too much from yourself and stop comparing performances.
3.Minus scores in mocks and continuous flops will make u feel worse and depressed. Acknowledge and make fun of yourself and move on.
4.Dont plan too much and dont make timetables for prep.
5.Dont read success stories et al for inspiration. Solving the next problem is inspiration enough. Never feel elated when someone praises you for your supposed skills.
6.Dont think too far ahead i.e like during prep dont imagine being in an IIM interview and play roles. Dreaming too far ahead is bad for health.
7.Indulge yourself in a game.Team game. No I am not talking of chess here. I took to carrom last year and what started as mindless striking of coins slowly took hold of me and now my analytical skills have improved leaps. I am able to realise that myself.
8.Accept ur reasons for giving CAT even if they are very dumb. Write them out like me. Share them if u feel OK. It will definitely help you and a lot others.
9.I read a lot of philosophy books. I like them. Osho et al. They helped me improve my english tremendously i think. But they killed the "Ambitious" me. It was one of the most trying phases of my prep life. Think twice before philosophy.
10.I read this somewhere when i was preparing for CAT. "CAT is not the end of the world." True this. Most of the guys who prep'ed with me have left to join IIM's and other insti's. Some are still with me. Some still trying. I should be feeling distraught.I should be feeling depressed. But I am not and it is very surprising because during prep days I even repressed myself from imagining not clearing CAT.
I finally move on.
All the best puys!
52m ago CAT
[OFFICIAL] IMS SIMCAT scores and Discussion for the entire 2014-15 season !!!Dear Puys & Pirls, Use this thread for scores and discussion for all the IMS SIMCATs!! It will serve as a repository ...
Simcat 12 unproctored qa 75 va 105 oa 180.
@Darknight123 - hw many LR sets did u do in this? were u able to do the University LR?
Just 1 set of lr.agar woh easy aaye toh it was a 140+ va paper.
Well let just say my marks were not bad, they were depressing.
1h ago CAT
The PaGaLGuY UnderDogs Team 2014Do you love taking up the challenge where you are considered as a person who cannot achieve the pinnacle easily but t...
Happy Diwali to All Puys + UDTians + DTians
UDT'14
It ain't over till I say it is over.
http://www.pagalguy.com/discussions/2014-mock-score-repository-25116679/20106521
ironically we won't have time to celebrate, so here's to not celebrating diwali next year.
1h ago CAT
AIMCAT 1513-New: Scores And Discussion ~ ( Invigilated: Aug 31-Sept 7, 2014 )Slot booking started ATB
Hi Puys.... QADI 41
VALR 34
Total 75
I know it's pretty low score but what would be my percentile???
I checked on CL percentile predictor. It was 90..
lol why would you check aimcat's percentile on CL predictor ?
I think you hav not enrolled for any test series in CL... On checking our percentile for CL mocks, it asks us to enter our AIMCAT scores( for particular test mentioning the test name).
2h ago CAT
CAT 2014 Exam day and slot discussionDiscuss about your date of exam, slot and centre in this thread.
Nov 22, evening slot.. In a remote, largely unknown village near by a unknown town 60 kms from Trichy.... ( I have lived in Trichy for some time, but still the place seems new
So the exact place is some ^@$%@# college, Thollupatti, Thottiyam...
Anybody with me for CAT and the road trip... :P
.Can someone help me out with the following problems with some clear and simple approcah to these qustions 4 balls ar...
1) IxI+IyI+IzI=15- Total no. of integral solutions?
2) xyz=10^6- Total no. of natural no. solutions?
Can someone explain the approach to such questions please?
2h ago CAT
CAT test taking strategiesIf you are going out shopping do you make plan or list of things to do? Girls if you are planning to do dieting you m...
Hi All,
I have enrolled for AIMCATs .In the new format my percentile is ranging from 35 to 70. Not able to attempt more number of questions .On an average 20 to 25 questions overall I could able to solve in mocks.Most of the time DI & LR questions .I have skipped RCs every time.
Please suggest me some tips and strategies to improve the number of attempts .
My CAT is on 22nd Nov.
Thanks
#following - btw i guess u shd post this in a more active thread like udt
3h ago CAT
CAREER LAUNCHER PROCTORED,UNPROCTORED MOCK 2014Hey puys n pirls, This forum is meant for detailed discussion of the CL mocks 2014. One can feel free to ask anything...
can I postpone a booked test?
3h ago CAT
Logical ReasoningThe question is followed by two statements X and Y. Answer using the following instructions: Choose 1 if the question...
from the choices, choose a pair in which the first statement implies the second statement and the two are logically consistent with the main statement-
Q- teachers can teach, only if students are well mannered.
A) teachers can teach.
B) students are not well mannered.
C) teachers cannot teach.
D) students are well mannered.
1)AB 2)BC 3)DA 4)CD
Hey puys, As we all are geared up to prepare ALL NEW CAT 2014, let us refresh our quant concepts bit by bit. All we n...
How to find number of solutions of equation
involving difference of perfect squares?
Before solving questions based on this concept, let us understand the absolute basics from where we build upon.
Equations involving difference and addition of two numbers, say x and y, will give solution over the set of integers only when either both x and y are odd or both are even. Let us understand this in 3 cases:
1. If x - y =Odd and x + y = Even
Then adding these two equations,
We will get 2 x = odd
(We all know: 2 X any number= even, odd+even=odd)
Which implies x cannot be an integer.
Similarly y cannot be integer.
2. If x - y =Even and x + y = Even
Then adding we will get 2 x = even
which implies x will be an integer.
Similarly y will be an integer.
3. If x - y =Odd and x + y = Odd
Then adding we will get 2 x = even
which implies x will be an integer.
Similarly y will be an integer.
NOTE: Thus while solving these questions given below we will keep in mind such equations will have solutions over the set of integers only when either both x and y are odd or both are even.
We will categorize such problems into 4 parts
CASE 1. Odd Number written as difference of two perfect squares
Example : Find the number of positive integer solutions of equation x2 - y2 = 85 ?
Sol : We can write given equation as
(x- y)(x +y )= 85
Now we want x and y both to be integers and we are given odd number on the
right hand side of equation .So clearly both factors will be odd
For finding factors of any number we decompose that number into prime factors
Since 85 = 5. 17
Factors of 5 are 50, 51 (2 in number)
Factors of 17 are 170, 171 (2 in number)
Thus total factors of 85 are obtained by multiplying the factors of 5 and 17
respectively
(i.e. 50170=1 , 50171=
17, 51170=5 , 51171= 85)
Thus total no of factors of 85 are 4 .
But our aim is that we have to write 85 as a product of two factors and Obviously difference of two positive integers is less than their sum i.e. x-y < x+y.So clearly there are two ways we can write 85 as a product of two factors i.e.
85 = 1 x 85 and 85 = 5 x 17
Thus the two possibilities are :
Either (x- y)= 1 and (x +y )= 85
Or (x- y)= 5 and (x +y )= 17.
So in above example answer is
(No of factors of 85)/2
i.e. 4/2 = 2
Answer : 2
NOTE:
Infact we can find the numbers also by solving the above equations x =43 ,y =42
and x=11 ,y = 6.But we are generally asked to find number of solutions only in
such questions
GENERALIZATION
So in such cases we can generalize no of ways in which we can write a
given number as a product of two factors is : (No of factors on the right
hand side of given)/2
Questions for Practice:
1. Find the number of positive integer solutions of equation x2
- y2 = 105 ?
Answer : 4
2. Find the number of positive integer solutions of equation x2
- y2 = 1815 ?
Answer : 6
3. Find the number of positive integer solutions of equation x2
- y2 = 1547 ?
Answer : 3
4. Find the number of positive integer solutions of equation x2
- y2 = 845 ?
Answer : 3
5. Find the number of positive integer solutions of equation x2
- y2 = 1215 ?
Answer : 10
CASE 2. Even Number which is not a multiple of 4 written as difference of two perfect squares
Example : Find the number of positive integer solutions of equation x2 - y2 = 66?
Sol : We can write given equation as
(x- y)(x +y )= 66
Now we want x and y both to be integers and we are given an even number on the
right hand side of equation which is not a multiple of 4.We know such equations
will have solutions over the set of integers only when either both x and y are odd
or both are even.
But none of the above case is possible
Case 1 : If both x and y are odd then (x- y) is also even
and (x +y ) is also even i.e. both are multiple of 2
Which implies that Left Hand Side is a multiple of 4 but right hand side
is not .Hence no solution is possible in case both are odd.
So clearly both factors on the Left Hand Side cannot be odd
Case 2 : If both x and y are even then (x- y) is also even
and (x +y ) is also even i.e. both are multiple of 2
Which implies that Left Hand Side is a multiple of 4 but right hand side
is not .Hence no solution is possible in case both are even.
So clearly both factors on the Left Hand Side cannot be even
Answer: Zero
Generalisation: Thus every number of the form 4k + 2 (where k is any integer ) can never be written as difference of perfect squares.
Questions for Practice:
1. Find the number of positive integer solutions of equation x2
- y2 = 1098 ?
Answer : Zero
2. Find the number of positive integer solutions of equation x2
- y2 = 3462 ?
Answer : Zero
3. Find the number of positive integer solutions of equation x2
- y2 = 3782 ?
Answer : Zero
4. Find the number of positive integer solutions of equation x2
- y2 = 84546 ?
Answer : Zero
5. Find the number of positive integer solutions of equation x2
- y2 = 1213514 ?
Answer : Zero
CASE 3. Even Number which is a multiple of 4 written as difference of two perfect squares
Example : Find the number of positive integer solutions
of equation x2 - y2 = 56?
Sol : We can write given equation as
(x- y)(x +y )= 56 (1)
Now we want x and y both to be integers and we are given an even number
which is a multiple of 4 on the right hand side of equation .We know such
equations will have solutions over the set of integers only when either both x
and y are odd or both are even.
So clearly both factors will be even
Let us take (x- y) =2p
(x + y)= 2q
So finally putting these in (1) we get
4 p q = 56
p q = 14
So our question reduces to writing 14 as a product of two factors
For finding factors of any number we decompose that number into prime
factors
14 = 21. 71
Factors of 2 are 20, 21 (2 in number)
Factors of 7 are 70, 71 (2 in number)
Thus total factors of 14 are obtained by multiplying the factors of 2 and 7 respectively
(i.e. 2070=1 , 2071=
7, 2170=2 , 2171= 14)
Thus total no of factors of 14 are 4 .
So clearly there are 4 ways we can write 36 as a product of two factors
14 = 1 x 14
14 = 2 x 7
Answer: 2
GENERALIZATION
So in such cases we can generalize no of ways in which we can write a
given number as a product of two factors is : (No of factors on the right hand
side of given after dividing by 4) /2.
Questions for Practise
1. Find the number of positive integer solutions of equation x2
- y2 = 67500 ?
Answer : 10
2. Find the number of positive integer solutions of equation x2
- y2 = 588 ?
Answer : 3
3. Find the number of positive integer solutions of equation x2
- y2 =10780 ?
Answer : 6
4. Find the number of positive integer solutions of equation x2
- y2 = 168 ?
Answer : 4
5. Find the number of positive integer solutions of equation x2
- y2 =720 ?
Answer : 9
CASE 4. Perfect square written as difference of perfect squares
Example : Find the number of positive integer solutions
of equation x2 - y2 = 144?
Sol : We can write given equation as
(x- y)(x +y )= 144 (1)
Now we want x and y both to be integers and we are given an even number which is a multiple of 4 on the right hand side of equation .We know such equations will have solutions over the set of integers only when either both x and y are odd or both are even.
So clearly both factors will be even
Let us take (x- y) =2p
(x + y)= 2q
So finally putting these in (1) we get
4 p q = 144
p q = 36
So our question reduces to writing 36 as a product of two factors
For finding factors of any number we decompose that number into prime
factors
36 = 22. 32
Factors of 22 are 20, 21 , 22
(3 in number)
Factors of 32 are 30, 31, 32 (3 in
number)
Thus total factors of 36 are obtained by multiplying the factors of 22 and 32 respectively
(i.e. 2030=1 , 2031=3, 2032=9 , 2130=2, 2131=6 , 2132=18, 2230=4 , 2231=12, 2232=36)
Thus total no of factors of 36 are 3 X 3 =9 .(Also note factors of perfect square are always odd )
Note : Both the factors cannot be 6 because if both (x- y)= 6 and (x +y )=6 Then x = 6 and y= 0 which is not possible as we are talking of positive integers. Since we cannot take both the factors 6 therefore remaining 8 factors can be written in 8/2 = 4 ways as a product of two factors.
So clearly there are 4 ways we can write 36 as a product of two factors
36 = 1 x 36
36 = 2 x 18
36 = 3 x 6
36 = 4 x 9
GENERALIZATION:
So in such cases we can generalize no of ways in which we can write a
given number as a product of two factors is:
{(No of factors on the right hand side of given after dividing by 4) - 1 }/2.
Questions for Practice
1. Find the number of positive integer solutions of equation x2
- y2 = 900 ?
Answer : 4
2. Find the number of positive integer solutions of equation x2
- y2 = 225 ?
Answer : 4
3. Find the number of positive integer solutions of equation x2
- y2 =324 ?
Answer : 2
4. Find the number of positive integer solutions of equation x2
- y2 = 122500?
Answer :7
5. Find the number of positive integer solutions of equation x2
- y2 =19600 ?
Answer : 13
-Wordpandit
bhai how to approach
x2 - y2 = 225
with the formula
(No of factors on the right hand side of given after dividing by 4) - 1 }/2
(as 225 is not divisible by 4) ?
@psycho.munna @harshcat91 how u are getting 10 for x^2-y^2= 1215? factors will be 6*2/2 =6( 3^5* 5). can u tell me where m making the mistake?
4h ago CAT
Official Thread for Maharashtra MBA/MMS CET-2015LET US ADD MORE PEOPLE TO IT. Let's start discussing questions on MHCET -Verbal Reasoning, Visual Reasoning, Quant, P...
4h ago CAT
CAT 2014 PreparationHello all, I am starting the preparation for CAT 2014, which is less than an year for now. I am a BE graduate with 2....
Hi guys, can you please suggest me the best mock test series for CAT 2014..
Mera mobile keyboard bhuka tha. Option word khaa gaya sorry
I find time somewhat easier compared to CL mocks. Will it be good for me to enroll for an IMS test series??
@Darknight123 But some rc's especially with CR becomes realy dificult to attempt. & if dats aimcat im realy scared to atempt.. How much time u give to an RC. Reading ? Nd how do u answer questions ?
My turn Hey @Darknight123, did you use to read lot of novels/books during school/college like PG Wodehouse n others?
DOnt take it the wrong way but aimcats are useless. Very tough.don't give that.it just discourages u. They have iit level maths and shakespeare level va. Just focus on CL for va.
Hahaha Ashish.
I Attempt all RCS and give around 30-35 mins for RCS.around 30 for lr and 20 mins for va.
I share a similar opinion as urs on aimcat so no offence taken.. But i dont think in entire India there is somebody who gets crazy marks like u do in VA. U attempt grammar nd word usages too ?