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Hi puys, CAT 2011 season is finally over :: :: Let start a new season of Quants thread for CAT 2012.. :: :: Here are few links of Quants thread for CAT 2011 season... Part-8 http://www.pagalguy.com/forum/quanti...at-...

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:banghead:

Saransh Sood
@Enceladus
7,344

all the quant enthusiasts

please continue here.

http://www.pagalguy.com/discussions/official-quant-thread-for-cat-2012-part-2-25078107/3235962mods plz close this thread

pls everyone, continue on the thread jain bhai opened (link -above). A thread needs to be closed when it has completed around 1000 pages.

Thanx.

- 5 Likes

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@akalola
19

Getting 15000.

18k*10/12 = 15k.

=====================Q) A credit card number has 6 digits (between 1 to 9). The first two digits are 12 in that order, the third digit is bigger than 6, the forth is divisible by 3 and the fifth digit is 3 times the sixth. How many different credit card numbers exist?

digits 1 2 3 4 5 & 6

numbers 1 2 ( 7,8,9) (3,6,9) (31,62,93)

Ans would be 3*3*3= 27.

Correct me if i am wrong

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@speedyshoeb
12

ans= 27

3rd digit could be 7,8 and 9

4th could be only 3,6,9

and 5 could be only 3, 6 and 9

and 6th digit be fixed according to 5th digit

so 3x3x3= 27

- 2 Likes

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Jai Mehra
@jaikishan.n
1,521

Getting 15000.

18k*10/12 = 15k.

=====================Q) A credit card number has 6 digits (between 1 to 9). The first two digits are 12 in that order, the third digit is bigger than 6, the forth is divisible by 3 and the fifth digit is 3 times the sixth. How many different credit card numbers exist?

my take

third digit can take 3 values

4th digit can take 3,6,9 = 3 values

5th digit = 3 times 6th. 6th can take only 1,2,3 and corresponding three values for 5th digit

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sorry for repost but i think its worthy of a shot

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Abhishek Jain
@jain4444
40,437

please continue here.

http://www.pagalguy.com/discussions/official-quant-thread-for-cat-2012-part-2-25078107/3235962

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Up Pande
@upudit0
1,640

A truck having ten tyres travels from P to Q and then back to P. If there are 2 additional spare tyres and the distance between P and Q is 9000 kilometres (km), then the maximum distance travelled (in km) by any tyre is at least?

(1) 12000 (2) 18000 (3) 9000 (4) 16000 (5) 15000

sol:

so clearly 1st tyre will travel 9000km and so by the 2nd tyre so total distance

travelled by individual tyre

=9000*10(forward)+9000*10(backward)

=18000*10

=180000km

now when there are twelve tyres=(10*18000)/12=

catch here is this that adding two tyre will not increase the truck length

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Saransh Sood
@Enceladus
7,344

A truck having ten tyres travels from P to Q and then back to P. If there are 2 additional spare tyres and the distance between P and Q is 9000 kilometres (km), then the maximum distance travelled (in km) by any tyre is at least?

(1) 12000 (2) 18000 (3) 9000 (4) 16000 (5) 15000

Getting 15000.

18k*10/12 = 15k.

=====================

- 1 Like

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A 250 m long train is approaching an unmanned railway crossing. The train is

running at a uniform speed of 75 km/h and is 3 km away from the crossing. At the same instant, a scooter is also approaching the crossing and is 1300 m away from it. The scooter is moving at a uniform speed of A. In which of the following ranges, A exists such that the scooter would pass the crossing by just escaping the collision?

(1) 24km/h to 28 km/h

(2) 29km/h to 33km/h

(3) 35km/h to 40km/h

(4) 41km/h to 45km/h

(5) 45 km/h to 50km/h

(3/75)=(1.3/A)

=>A=32.5~33

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