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Official Quant thread for CAT 09-III (September onwards)
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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Vineetverma Vineetverma is offline
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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 03:08 AM

Quote:
Originally Posted by Vineetverma View Post
see the attachment for diag if u cant se it then srry move on to the next post

nywaz
qn if u were trapped in a square shaped cage ( with megan fox ) in a triangular room in which two corners of the cage are touching the two smaller sides of a triangle and one side of the of the cage is on the largest side of the triangle.. what wud be the size of a side of the square cage

ps: lengths of sides of the triangle 10 , 17 and 21

no answer available

wrkin on it
the room cn be split into two parts (right angled triangles) of dimensions 6,8,10 and 8,15,17

nw i m stuck
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anshul_mechie anshul_mechie is offline
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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 03:11 AM

Quote:
Originally Posted by Vineetverma View Post
see the attachment for diag if u cant se it then srry move on to the next post

nywaz
qn if u were trapped in a square shaped cage ( with megan fox ) in a triangular room in which two corners of the cage are touching the two smaller sides of a triangle and one side of the of the cage is on the largest side of the triangle.. what wud be the size of a side of the square cage

ps: lengths of sides of the triangle 10 , 17 and 21

no answer available

wrkin on it

the answer should be 168/29
what i did was calculate the total area..
then find the height..
then equate the total area with the area of the four parts...
form an equation in s and solve it...
the answer may be wrong bt the approach should be correct.. beacuse it had no glitches..
p.s. the answer is right.. it should be 168/29.. m gettin the total area correct using it..

n BTW
wud nebody bother to find out the side.. if he's in der wid MEGAN fOX...


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Last edited by anshul_mechie; 05-11-2009 at 03:23 AM.
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Kashyap Rastogi Kashyap Rastogi is offline
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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 03:15 AM

<<<snipped>>>

Last edited by Kashyap Rastogi; 05-11-2009 at 03:42 AM.
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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 03:27 AM

Quote:
Originally Posted by anshul_mechie View Post
the answer should be 168/29
what i did was calculate the total area..
then find the height..
then equate the total area with the area of the four parts...
form an equation in s and solve it...
the answer may be wrong bt the approach should be correct.. beacuse it had no glitches..
p.s. the answer is right.. it should be 168/29.. m gettin the total area correct using it..

n BTW
wud nebody bother to find out the side.. if he's in der wid MEGAN fOX...
I am getting 5.4 cm (div in the ratio 10:17)

nd abt measuring the sides so true

Last edited by Vineetverma; 05-11-2009 at 03:30 AM.
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shashankmishra shashankmishra is offline
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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 03:30 AM

Quote:
Originally Posted by Vineetverma View Post
see the attachment for diag if u cant se it then srry move on to the next post

nywaz
qn if u were trapped in a square shaped cage ( with megan fox ) in a triangular room in which two corners of the cage are touching the two smaller sides of a triangle and one side of the of the cage is on the largest side of the triangle.. what wud be the size of a side of the square cage

ps: lengths of sides of the triangle 10 , 17 and 21

no answer available

wrkin on it
Area of triangle = 84 so height = 8........

Now consider it as similar triangle ..........So we have
Side of square = x

(8-x) / 8 = x / 21

x = 168/29


What MEGAN FOX ........

Who cares the side........ Damn!! Who cares the CAGE.....


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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 03:32 AM

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Originally Posted by Vineetverma View Post
I am getting 5.4 cm (div in the ratio 10:17)

nd abt measuring the sides so true
168/29 is 5.79... almost there...
hw did u get 5.4..post d approach...


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plural of orgasm
|chehra kitab
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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 03:38 AM

Quote:
Originally Posted by anshul_mechie View Post
168/29 is 5.79... almost there...
hw did u get 5.4..post d approach...
srry used the wrng approach hence the wrng ans i guess i must ve been majorly distracted

ur approach is right
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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 03:43 AM

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Originally Posted by Vineetverma View Post
The Megan Fox Love Triangle
Anshul Is Correct, Have My Approach

Area Of triangle = root[(s)(s-a)(s-b)(s-c)] = 84
Also, 1/2 * b * h = 84
h = 8

Now Let Triangle Be AEH, Square Be BCGF And Altitude Be ED
By Similarity,
BC/ED = AB/AD
AD = AB*ED/BC .. (1)
Also, HF/HD = GF/ED
HD = HF*ED/GF .. (2)

Adding 1 and 2
AD + HD = ED/BC * (AB + HF) (because BC=GF)
21 = 8/BC * (AH - BF)
21 = 8/BC * (21 - BC)
21BC = 168 - 8BC
29BC = 168
BC = 168/29


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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 07:42 AM

Quote:
Originally Posted by anshul_mechie View Post
plz post the solution with an UNDERSTANDABLE approach for dis one...

for any natural nos. let k be the index of the highest power of 2 which divides the number. among the first 100 natural nos. all those nos. for which k is even are removed. find the index of the highest power of 2 which divides the product of remaining nos.
can anyone tell me what is meant by 'index' of a number?
or provide a link to understand the same....


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Re: Official Quant thread for CAT 09-III (September onwards) - 05-11-2009, 08:40 AM

Quote:
Originally Posted by crack_2009 View Post
How many different prime numbers are factor of N if
log11log13log17log19N =23

where 11,13,17,19 are bases to log ?

options

1) 2
2) 7
3) 4
4) 0
5) None of these
(loglogloglog N )/log11*log13*log*17*log19 = 23
log log log log N = 23 * log11 * log13 * log17 * log19
log log log log N = 23 * log(11+13+17+19)
log log log log N = 23 * log(60)
log log log N = 60^23
log log N = 10 ^ (60^23)
log N = 10 ^ (10^ 60 ^23)
N = 10 ^ (10 ^ 10 ^ 60 ^ 23)
N = (5 * 2) ^ (10 ^ 10 ^ 60 ^ 23)
Hence there should be 2 prime nos only.

2(Option 1)

Plz post the OA for this.

Last edited by harshkumar1; 05-11-2009 at 08:43 AM.
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