Official Quant thread for CAT 2013

isn't it time to close this thread and move to Quant thread for CAT 2014 ? what do you guys think ? 

EDIT: USE THIS THREAD -http://www.pagalguy.com/cat/official-quant-thread-for-cat-2014-25104681


value of log (e(e(e......)^1/2)^1/2)^1/2  

dnt knw d ans.... (log to base e)

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it is given that , a^(n-3) + a^(n - 5) b^2 + ..+ b^(n-3) = 0, where p and q != 0 and n is odd then (a^n - b^n )(a + b)/ (a^n + b^n)(a - b) =

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Apples are bought at 10 for a rupee and an equal number more at 15 for a rupee. If these are sold at 11 for a rupees. Find the loss or gain percent.

I am not able to solve it can anyone help.

guys let me know how to attach a file in post. I have a lot of high funda questions to ask


it is given that f(x) = P^x,g(x) = (-p)^x ,; h(x) = (1/p)^x , k(x) = (-1/p)^x then how this one is true. g(x) and h(x) can exist outside real domain

In how many ways 8 balls of different colours can be placed in 3 identical boxes if each box contains atleast 1 ball


Pardon me for posting this sort of stuff on this thread, but considering the staggering number of followers that this thread has, it makes perfect sense to do so.

I have been preparing for CAT 2014 for while a while now (around 9 months or so). Have been scoring decent marks, not great though. Apparently, since the last month I have lost of the motivation that drove me, I have lost interest, I have developed an aversion towards Mocks. Everything seems so repetitive. 

People tell me that mine is a classic case of 'Burn-out'. Most of the enthusiasm that I had initially has waned off. I look forward to things / activities that most of the CAT aspirants avoid doing at this time. I have already revised most of my notes, and going through the same notes over and over again depresses me. People usually pick up speed at this time, on the other hand, I am slacking. This bothers me, I should be studying, practicing and revising and I sometimes do but the bout of motivation is lost in midst of the toil. AIMCATs demoralize me and sitting for a mock seems to be such a difficult task now.

Just wanted to know if there are people like me, who have also faced or facing such an issue. What should I do? Aren't you guys bored? How do you manage to keep adrenaline pumping? 

PS: I have put a temporary moratorium on mocks. Would start appearing for them from the weekend.  

Also I am a working professional.

((12!)^12!)/13!     . WHAT IS THE REMAINDER?

CAN SOMEBODY ANSWER THIS?

the 7th and 21st terms of an ap are 6 and -22 respectively. Find the 26th term. 

-34 OR -32 

please solve this with explanation.

A and B are friends.they decide to meet between 1 PM to 2 PM on a given day.There is a condition that whoever arrives first will not wait for the other for more than 15 min. The probability that they will meet on that day is

A and B are friends.they decide to meet between 1 PM to 2 PM on a given day.There is a condition that whoever arrives first will not wait for the other for more than 15 min. The probability that they will meet on that day is



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How many 3-digit even numbers can you form such that if one of the digits is 5 then the following digit must be 7?

In here wont we be taking those cases as well in which there is no digit 5??

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https://play.google.com/store/apps/details?id=com.examupdates.newsreader

excellent app for various feed update .hope this will be helpful

In how many ways 26 objects can be divided among 5 men (x1,x2,x3,x4,x5) such that x1>x2>x3>x4>x5?

Please share your approach.

I dont have the OA. 

Could you guys plz recommend a good book for quant CAT?

i am a MBA aspirant, i have questions regarding IIM'S like whether they have any criteria of percentage in SSC, HSC & graduation, and also i have a gap of 3 years in between my hsc & graduation so what are the problems i will face in MBA. Please Help me out

A robot is designed to move in a peculiar way and it can be set in motion by a microprocessor program. The program can be initiated by assigning a positive rational value to its variable n. Once initiated, the program directs the robot to move in the following way. As soon as the program is started, the robot (which is initially facing North) starts from the point O, moves 2nmetres northward and then changes its direction by n° to the right. It then moves 2n metres forward and again changes its direction by n° to the right and continues in this manner till it again reaches the starting point O, or till it covers a total distance of 1000 m, whichever happens first, and then it stops.

For how many values of n in interval [1,60] does robot cover les than 1000m before it stops?

1)19 ,2)60 3) 355 and 4)infinite

How many integral values of x will satisfy below equation.

|x-2|+|x+3|+|5-x|+|x-8|

5

6

7

8

Babloo has four identical one rupee coins. He has a square-shaped board which is divided into 49 squares of equal area numbered from 1 to 49 by drawing lines parallel to the sides of the square such that there are seven squares along each row and each column. In how many ways can he place these four coins on the board such that no two coins are in the same row or same column?

Approach please