CAT 2008: Quantitative Questions a Day 1 to 50 - The discussions

implex

Quote:

Originally Posted by mohdfazal

I understand that would be of importance if we were to think from that point of view but is that really required... Is it not enough to use the other logic?? or will the logic that we use not be useful in certain situations?

i've sent a PM with my email details t u...

the point is we need flawless logic, and his is the only flawless one, where you are bound not to fail!

jha16june

Quote:

Originally Posted by Aarav

Expecting many to come out with the right answer

let's see who writes the solution with correct reasoning.

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Quantitative Question # 001
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Let the sum S = 20 of four natural numbers a, b, c, d be such that a(a+1) + b(b+1) + c(c+1) + d(d+1) = 312. Which among the a, b, c, d is/are uniquely determinable ?
(1) None if a = b (2) Atleast 2 if a ≠b (3) All if a > b (4) All of the foregoing (5) Exactly 2 of the foregoing

Well the options are more trickier than the problem itself

.
As option 2 and option 3 are correct so the answer is option 5.

Nice work Arav!

mohdfazal

Quote:

Originally Posted by implex

the point is we need flawless logic, and his is the only flawless one, where you are bound not to fail!

Thx... got it now...

Aarav

Hello All,

Kindly report us in case you aren't receiving the NLs. I hope all of you got the announcement QQAD 2008 mailer?

Quite a number of PGites PMed me today as they didn't get QQAD # 001 and I have forwarded their email id to PG technical team.
For any future concerns please write to estranged_gnrs or me. Writing directly to Rohit (estranged_gnrs) will invoke quicker response on technical issues.

aravindva

@ mods..
plzz dont label this post as spam..

@ everybody...
I have been following QQAD since last year and I have followed every bit of it.
Today were the CAT results. I had two calls B and L. B ditched me and L gave me waiting list. Frankly, people would expect me to weep and stay away from everything for a few days. Trust me, it really hurts a lot.
But I had had enough this whole day. I have been reading 'All I wanted to talk about CAT' all this time... and finally I realize.. "what the hell !! It's just my first time, I am still a fresher. If in my first attempt I can reach the final step, I am confident I can go over it next year."

The most important thing I wanted to say is, everybody, make full use of QQAD, make full use of aarav and vineet. I scored 99.98%ile in quant in CAT 2007 and I owe every bit of it, every damn bit of it to those two people and other people whom I have interacted with on last year QQAD thread. I can bet my life that you wont get any institute material better than QQAD and the practice tests that aarav and vineet provide.

Give your best and all the best for CAT 2008

aravindva

@ aarav..

have a doubt
what's the following thread for?
http://www.pagalguy.com/forum/quanti...stion-day.html (Season III - Quant Question A Day CAT 2008)

maverick_jonty

Hi

Thanx a tonn arav for starting this wonderful post

The way cat changed its quant this year i'm sure this post is imperative

vaibhav2cool

a+b+c+d=20
a^2+b^2+c^2+d^2=292
a^2+^2+c^2+d^2 will hav its maximum value when the numbers are as far apart as possible..
so 1,1,1, 17 can give the the maximum value which is 292
so 1,1,1,17 is the only soln.

option2,3 are right and hence overall option5 is correct.

Aarav

Quote:

Originally Posted by aravindva

@ aarav..

have a doubt
what's the following thread for?
http://www.pagalguy.com/forum/quanti...stion-day.html (Season III - Quant Question A Day CAT 2008)

Hello Arvind, a very warm welcome to QQAD - the thread above is for announcement.

Never mind about the non-conversions - you might still make it this time only. It's just a matter of time for you - we have scores of cases on PG only where we see justice being done at the end. If the ending is not good then as King Khan said - Picture abhie baaki hai.

Aarav

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Quantitative Question # 002
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Consider a string of n 7s, 7777....77, into which + signs are inserted to produce an arithmetic expression. For example, 7 + 777 + 7 = 791 could be obtained from five 7s in this way. For how many values of n is it possible to insert + signs so that the resulting expression has value 7000?

(1) 105 (2) 106 (3) 108 (4) 109 (5) 111