CAT 2012 Kerala study group

MBA CAT 2024
1221
@pugna Happy bday !!
1222
@Kevin88 @seetharam7 : thank u :)
1223

oopsie...Better late than never.. Hapy Bday

@pugna
1224



Its time we put evrything behind and come up close with CAT. You may be nervous , may be feeling that you are underprepared... blah blah...

4get it guys , The moment has come ! You know that you have given ur best... all those days of hardwork , now its the time to perfect it!

Chuck ur worries away and face it, maul it!

! Bring it on !


All the best everyone! Being "cool and calm" must be the thumb rule on the D -DAY!


1225
@joethaliath Will you be going to chennai to just write your CAT exam ?
1226
@seetharam7 4 of us are writing it together , and we are stayin back for 2 days post CAT .. in a nutshell , converted it into a trip 😛 😁
1227

All the best to one and all....
Do us Malayalis proud...


1228
its been long time everyone.....was a frequent visitor in here,but was not in a mood to pen down anything...today at-last i'm feeling a sense of confidence,thanks to many of my friends over here who supported me-
@seetharam ,@joethaliath ,@Kevin with all sort of videos and thoughts....i'm taking up my exams on nov 2nd....ALL the best to everyone out here who are taking up the exams on the first lap....let god be with u all....
1229

Oh yes, it's here. All is well machu, All is well !!

1230

Everyone went into a hibenration or what ? 😃

1231
@joethaliath

Joe. not exactly!!!
I 'm mostly online.. but the window is masked by my ERP module at office
Ther's hardly anyone posting here!!!
I get to chat with @seetharam7 thru PM's but apart from him.. no one even pings !!!
This might be the reason why no one even knows that we have a study grup from Kerala

Personally, i feel we kind a lost our way towards the end !!!

However, the season has jst begun & hopefully we all can learn from our mistakes, be a bit more active & make this journey a roller coaster ride than a personal pilgrimage


1232
@joethaliath I am online half the time. As no one is here, I started being active on shoutbox and other threads. Am always here though. As a silent gaurdian, a watchful protector, a dark knight
1233
@seetharam7 said:
@joethaliath
I am online half the time. As no one is here, I started being active on shoutbox and other threads.
Am always here though. As a silent gaurdian, a watchful protector, a dark knight
Korchu Overayi!!!

Alla!! Limit vittu poyyi !!!

If u're dark knight, then i'm the 'dark horse' of the team !!!

Sorry !!! I just cudn't resist posting this image !!!!
A picture speaks a thousand words !!!!!

1234
@seetharam7

If u're online half the time... post useful titbits for all ... quote gud concepts & lets revise with the team..even 5 Q's will be enough.../point us all in the right direction brother...

P.S : Never posted in shoutbox before myself !!!
P.P.S : Will be posting more pictures for boring all lurkers out there !!!
P.P.P.S: My hidden agenda : Revitalize the team with Bakar Energy !!!

Hopefully @raku1989 @pugna & the rest of the gang will come out of their silent slumber & be more active !!! Atleast send me a profanity filled PM to prove you guys are alive
1235
@Kevin88 Ok boss. I will post the concepts posted by people in the shoutbox. ( i don't have any concepts of my own )
1236
Simple Interest / Compound Interest / Loans:
1. SI = P*n*r / 100
2. P + CI = P*(1 + r/100)^n , r = annual rate of interest, P = principal amount, n = number of years
3. P + CI = P*(1 + (r/k)*(1/100))^(N) , If r = annual rate of interest, and compounded every (k) times a year, N = number of such (12/k) periods
4. P + CI = P*(e ^(n*r/100) ) , if compounded every moment , e = 2.713, n= number of years, r = rate of interest
For yearly installment:
Let the installment be Rs x
Let (1+R/100) = t
x + x*t + x*(t^2) + ... x*(t^(N-1)) = P*(t^N)
Calculate x
For monthly installment:
Let the installment be Rs x
Let (1+ (R/12)*(1/100) ) = t
x +x*t + x*(t^2) + ... x* (t^(12N-1)) = P*(t^12N)
Calculate x

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1237
Percentage/ Profit-Loss:
1. Simple Annual Growth Rate = 100* (Final- Initial) /[(Initial)*(number of periods)]
2. Compounded Annual Growth Rate = 100 * [ (Final/Initial)^(1/number of periods) - 1]
3. Profit = SP - CP
4. Profit % = (SP -CP)/CP * 100
5. Discount = MP - SP
6. Discount % = (MP-SP)/MP * 100
7. Mark up (by default) = MP - CP
8. Successive increase of a %, b% => (a + b + ab/100) % .. For decrease, change the sign of a or b as needed.

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1238
Stocks and Shares:
Jargons involved:
Face value----original cost at which share was issued by company...if its not mentioned in the question, its safe to assume it 100....specially if its a stock.
Market value---rate at which the share can be traded at a point of time...unlike face value which is static, market value is dynamic
Premium---a share with MV > FV
Discount---- a share with FV > MV
Par----a share with FV = MV
Dividend---percentage of FV that she share holder gets as income/profit or simply dividend---hence, a function of FV
Brokerage---percentage of transaction that middle man takes---hence, a function of MV
Percentage yield (also applicable to profit n loss etc)----net profit / net investment
Break Even Value----point of no profit no loss...
Now lets take a simple example....
Q.)A person invested Rs 20,000 on 100/- shares bought at par giving 4% dividend. When the market value rose to 120/- he sold all shares and invested the proceedings on 10/- shares, bought at 12/- giving 10% dividend...Find the change in income...
No. of shares he bought = 20,000/100 (since FV = MV) = 200
each share gives 4% of 100 (FV) = 4/-
hence, total income = 200 x 4 = 800/-
see...how to do it quickly... 20,000 / 100(MV) x 4% of 100(FV) = 800/-
now, we know this person had 200 shares...so when he sold he got 200 x 120 = 24000 / -
in 24000, he can buy 24000/12(MV of new share) = 2000 shares
each share gives him 10% of 10/- = 1/-
hence, 2000 shares give 2000/-
quickly... 200 x 120 / 12 x 10% of 10 = 2000
=> change in income is 2000 - 800 =1200
Hence, his income grew by 1200/-

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1239
Time and Distance, Work:
1. Average speed = Total distance/ Total time
2. Relative speed-> opposite direction = v1 + v2, same direction = |v1-v2|
3. Circular motion (speeds a,b , track length L, starting at the same point):
a) If ratio of speeds is m:n, they meet at (m+n) distinct points, if opposite direction, and they meet at |m-n| distinct points, if same direction. (The points are distributed symmetrically)
b) First meeting time = L/(a+b) or L/(|a-b|) respectively
c) The sum of the distances travelled by the two, between any two meeting points, when travelling in opposite direction is L
d) The difference of the distances travelled by the two, between any two meeting points, when travelling in same direction is L
e) Clocks concept can be clubbed with this: Hour hand moves at (1/2) degree per minute, Minute hand moves at 6 degree/minute. We can use relative speed concept to find out angle between them etc. Detailed Clocks in another post.
4. Linear motion (speeds a,b , track length L, starting at opposite ends):
If ratio of the speeds is not more than 1.5,
a) they meet at m distinct points where m>n and m:n is the ratio of the speeds, but the sequence of the points repeats after every (m+n) meetings.
b) the sum of the distances travelled between each meeting point = 2*L
If ratio > 1.5, brute force method is the only method I think.
5. Man Days/ Man hours concepts:
For a particular work to be done, the man days required to complete the work is the same or varies in direct proportional to the work to be done
Ex: 5 mandays = 5 men 1 day OR 1 man 5 days
So, in general N*D*H/W = constant,where N = number of men, D = number of days, H = hours worked per day, and W is the work to be done. W is generally taken as 1, or any other suitable quantity.
Money is shared between the workers in the proportion of their work done during the time period.

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1240
Ratio/Proportion/Variation:
a,b,c,d are in proportion:
1. If b^2 = a*c => b is the mean proportional of a and c
2. a/b = b/c => c is the third proportional of a and b
3. a/b = c/d => d is the fourth proportional of a,b,c
If (a/b) > 1 -> for x>0, (a+x) / (b+x)
If (a/b) for x>0, (a+x) / (b+x) > (a/b) --> Useful in DI
Types of variations:
1. Directly proportional: A = k*B , k is a constant
2. Inversely proportional: A = k/B
3. Joint variation: A = k* B/ C , A = k1*B + k2*C

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