CAT 2008: QQAD Practice Test Discussions - Page 27
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Quantitative Questions and Answers Discuss Quantitative and other Math related questions. Post your math doubts and get it solved by the smartest brains this side of the universe !

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View Poll Results: What is your opinion on the Practice Test(s) of QQAD?
Not CAT like -> would want more grilling test next time 7 4.83%
Not CAT like -> it was too tough for a quant paper 26 17.93%
CAT like -> it tested me well on quant topics and made me learn my weak areas 101 69.66%
CAT like -> the test could have been better to test student's abilities 11 7.59%
Voters: 145. You may not vote on this poll

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Re: CAT 2008: QQAD Practice Test Discussions
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nbangalorekar
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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 12:43 PM

Quote:
Originally Posted by Aarav View Post
The keys will be released today at 1:30 PM. There after, the thread will be open for discussions. I'm expecting solutions from students for all the 25 problems by 4 PM today
sorry for the delay in posting... Found the paper quite easier but very much cat-like!!! in the sense that few difficult qns interspersed between easy ones... neways my attempts:

2-C
3-B
5-B
6-D
8-A
9-B
12-E
13-C
14-A
17-E
18-A
20-A
22-A
23-D
24-E

Aarav awaiting ur comments...


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Last edited by nbangalorekar; 03-07-2008 at 12:49 PM.. Reason: typo
   
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Re: CAT 2008: QQAD Practice Test Discussions
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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 12:54 PM

Quote:
Originally Posted by nbangalorekar View Post
Aarav awaiting ur comments...
Looks too good to be true. You should expect 100 percentile in CAT with such kind of performance.

I will like you to give the solutions for all the answers you have posted. Be the 1st person to do that.


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Re: CAT 2008: QQAD Practice Test Discussions
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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 01:01 PM

I'm ready with few of the answers as well sir..
Hum sab log bhi apne solutions post kar sakte hain na?
   
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Re: CAT 2008: QQAD Practice Test Discussions
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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 01:04 PM

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Originally Posted by milindagrawal View Post
I'm ready with few of the answers as well sir..
Hum sab log bhi apne solutions post kar sakte hain na?
You can but I wanted the topper (nbangalorekar) to lead from the front. If possible, please allow him the post the answer to 15 questions he has attempted and most of which are correct.


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Re: CAT 2008: QQAD Practice Test Discussions
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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 01:05 PM

Quote:
Originally Posted by nbangalorekar View Post
sorry for the delay in posting... Found the paper quite easier but very much cat-like!!! in the sense that few difficult qns interspersed between easy ones... neways my attempts:

.....
Aarav awaiting ur comments...

@nbangalorekar!!!!! bhai apan ke answers kaafi match kar rahe hai .....agar aapke 100 % aaye, to mere kam se kam 99 to hoga hi ..

and solution post karne ki to race hogi aaj ,,,i feel so


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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 01:08 PM

@ Aarav, ne comments on my answers @ pg25.??? unimaginably attempts kaafi kiye is baar


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Last edited by thebornattitude; 03-07-2008 at 01:14 PM.. Reason: 25 ko 95 likh diya tha
   
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Re: CAT 2008: QQAD Practice Test Discussions
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Red face Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 01:13 PM

Quote:
Originally Posted by Aarav View Post
You can but I wanted the topper (nbangalorekar) to lead from the front. If possible, please allow him the post the answer to 15 questions he has attempted and most of which are correct.
could just find one in the list i have prepared to post which is not the same as the topper's.
i'll that chance though.
   
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Re: CAT 2008: QQAD Practice Test Discussions
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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 01:27 PM

Practice Test 2 was on similar lines to Test 1, with same format, and almost same distribution to each topic of
Algebra/Numbers/Geometry/Arithmetic/Logical/DS questions.

Most of the people who score 99.XX in quant in CAT do so primarily because of their good accuracy than more number of attempts. The perfect way a student should approach his/her preparation is by ensuring that he/she is consistently having more than 85% accuracy in the tests, and then attempting to enlarge the competency areas [by coming out from the comfort-zones]. A great advantage when you know that your accuracy is good is -> you can gradually look to increase your speed and yet be certain that any question you touch will turn gold for you. The feeling of somewhere in the middle and uncertain how you have have fared so far in the midst of a test can spell doom.

9 problems can be classified as easy, and we would like to hear from you as to why you didn't get these right in the exam itself. Was it an error not to read these and understand what needs to be done before taking the decision to attempt or leave it, or you didn't have the competency in areas those questions were from that prompted you to skip these?
The nine problems are -> 1, 3, 5, 6, 7, 11, 18, 22, 23, and were meant to be solved in 3 minutes each.
DS questions in this test were not easy, and would have grilled even the best.

A person with sound preparation and who had developed a decent test taking approach in quant should have managed 36+ in this test. The cut-off (i.e. 96 percentile for almost all the IIM calls) score will be 30 marks in this test. 90 percentile (for a solitary IIM call, K/I/S) will be close to 20 marks. 41 marks will be 99+ here.
Students should have ideally looked to attempt 12 questions in this kind of paper with good accuracy. For the 1st two tests of QQAD, the cut-off has been not more than 30 marks. Students shouldn't assume that attempting 10 questions in quant is safe for a good score as scores can vary depending on the nature of the paper. We might have CAT 2008 quant, where even 13 correct answers may not be safe. Hence, be hungary along with a good knowledge of your strengths and weaknesses when you attempt the paper.

Keys to Practice Test 2

1 -> E
2 -> C
3 -> B
4 -> E
5 -> B
6 -> D
7 -> C
8 -> A
9 -> B
10 -> C
11 -> B
12 -> E
13 -> C
14 -> A
15 -> E
16 -> A
17 -> E
18 -> A
19 -> A
20 -> A
21 -> B
22 -> A
23 -> D
24 -> D
25 -> D

The thread is open for all to post solutions now


What lies in front of you or behind you is nothing compared to what lies within you - T.M.W.S.H.F

The greatest events in the life aren't the loudest, but the quietest hours - Anonymous

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The Following 12 Users Say Thank You to Aarav For This Useful Post:
arbit_rageur (03-07-2008), dhanu_25 (03-07-2008), hellion (03-07-2008), implex (03-07-2008), milindagrawal (03-07-2008), prince_chittu (04-07-2008), sanyo (03-07-2008), sid_dharth (03-07-2008), smartie (03-07-2008), srikar2097 (03-07-2008), thebornattitude (03-07-2008), the_egonomist (03-07-2008)
Re: CAT 2008: QQAD Practice Test Discussions
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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 01:31 PM

q2) Starting with the last two numbers and arranging the first 3 numbers according to them.
let d,e=4,5 (total is 9) => So we can have 3 numbers (1,2,3) any of which will fit into the first two places.
No. of permutations of first 3= 3P2=6.. also perm. of last two nos. = 2P1=2.
So, total perm. for d/e=4/5 = 12 Perm.

similarly for d/e=3/5 (total is 8 ). any combination of 1/2/4 will be less than 8.
So, again 12 perm.

for d/e=5/2 , (total is 7) =>2 permutations.
possible values of a/b are 1/3, 1/4. => 4 permutations.
so, 4*2=8 perm.

For d/e=5/1, (total is 6) => 2 permutations.
possible values of a/b are 2/3 => 2 perm.
So, 2*2=4 perm.

For d/e=4/3 (total is 7) => 2 perm.
possible values of a/b are 1/5, 1/2 => 4 perm.
So, 4*2=8 Perm.

Finally for d/e=4/2 , (total is 6) =>2 Perm.
Possible values of a/b are 1/3 => 2 perm.
so, 2*2=4 Perm.

So total GOOD permutations are 12+12+8+4+8+4=48
   
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Re: CAT 2008: QQAD Practice Test Discussions
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Re: CAT 2008: QQAD Practice Test Discussions - 03-07-2008, 01:33 PM

q3)
Aamir 9 hours
Saif 10 hrs.
So total time they both would take without talking =10*9/19=90/19 hrs.
But they take 5 hrs=95/19 hrs.
So time wasted is 5/19 hrs. they work for 5 hrs and put 10 bricks less per hour, so they had to put in extra time for 5*10=50 bricks.
Now, extra time taken=5/19 hrs.
so, in 5/19 hrs: 50 bricks
5 hrs: x
x=950 bricks.
But this includes the 50 bricks extra put in the time 5/19 hrs.
So total number of bricks are 900
   
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