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# Official Quant Thread for CAT 2012 [part 2]

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** MBA is hyped but post MBA life is over hyped **
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What is the next no. In below series?
1,11,21,1211,111221,?

1.312211
2.222211
3.311211
4.211211

ans : 3.311211
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LIVE CHAT with ex- Convenor and Dean MISB Bocconi

26th December 2014 at 8.30pm with  Dr. Himanshu Rai, CAT 2010 Convenor and Dean MISB Bocconi.

-Faculty from SDA Bocconi, Italy

-Dual Campus Mumbai and Milan

-2014 Avg. CTC 10 Lakh p.a

- Merit Based Tuition Fee Waiver

I guessed this one would be option five because the answer would be 12+a*sqrt(b) :sneaky:

And only option5, has that form. But is there a better way to do this? Something conceptual?

Yeah ... :-P

And you are THE Omkar Parab ? :)

Continue here :

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Great Lakes Institute of Management || PGPM Class of 2013 || https://www.facebook.com/pkamani
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may be coz,i'd found myself understanding the problem:)

but really thanks a lot for your effort..

Another Q from geometry:

OA:5

P.S : Good Night,And Good Luck

I guessed this one would be option 5 because the answer would be 12+a*sqrt(b) :sneaky:
12 because AE + ED = 12, and the other side would be a*sqrt(80)

And only option5, has that form. But is there a better way to do this? Something conceptual?

"I am the master of my fate, I am the captain of my soul" - Invictus|| UDT '12, MMDT '12, '11. Quora: http://www.quora.com/Omkar-Parab-1
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312211

OA kya hai ?

Bro aapne ek baar jo bol diya OA wahi hota hai.
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Better to reign in hell than to serve in heaven
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Great Lakes Institute of Management || PGPM Class of 2013 || https://www.facebook.com/pkamani
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What is the next no. In below series?
1,11,21,1211,111221,?

1.312211
2.222211
3.311211
4.211211

It is 1. 312211

Concentrate on how the numbers are said,
"I am the master of my fate, I am the captain of my soul" - Invictus|| UDT '12, MMDT '12, '11. Quora: http://www.quora.com/Omkar-Parab-1
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What is the next no. In below series?
1,11,21,1211,111221,?

1.312211
2.222211
3.311211
4.211211

This is just counting the number of 1's and 2's.
3 times 1 then 2 times 2 then 1 time 1.
So, 312211.
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What is the next no. In below series?
1,11,21,1211,111221,?

1.312211
2.222211
3.311211
4.211211

312211

OA kya hai ?
Great Lakes Institute of Management || PGPM Class of 2013 || https://www.facebook.com/pkamani
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For the M:N wala question it should be 3:2 as explained by arumugudas I think.

"I am the master of my fate, I am the captain of my soul" - Invictus|| UDT '12, MMDT '12, '11. Quora: http://www.quora.com/Omkar-Parab-1
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What is the next no. In below series?
1,11,21,1211,111221,?

1.312211
2.222211
3.311211
4.211211

Better to reign in hell than to serve in heaven
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devanshu97 Says
A and B pick up a ball at random from a bag containing M red and N yellow colored balls one after the other replacing the ball everytime till one of them gets red ball. The first one to get a red ball is declared the winner. If A begins the game and odds in favor of his winning the game are 3 to 2, then find the ratio of M:N

i might be wrong ....

i am trying because u asked ........ask jain bhai or varun thaygi ..........

odds in favour = p(E)/p(E') =3/2

its written who gets the red ball will win so winning for A is 3/x and and not winning is 2/x ...here wat is x total no of balls 3 red and 2 yellow ie 5 balls

since the balls are replaced before every draw it remains 5

so M:N =3:2

tell me the ans ...check pls:)
hope for the best
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sumit99 Says
Gr8 move u gt it nice. M on mobile bhai u r absolutely ri8,by the way hw u got that i m on mobile.

may be coz,i'd found myself understanding the problem:)

but really thanks a lot for your effort..

Another Q from geometry:

OA:5

P.S : Good Night,And Good Luck
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I won't run on Sunday even if it's 100m event in Olympic games
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sumit99 Says
A father and his son starts at a pt. A wid speeds 12kmph and 18kmph and reach another pt. B. If his son starts 60 min. After his fathet at A and reaches 60 min earlier than his father. Wat is the distance between A and B.

12*(x+2) = 18x

24 = 6x
x=4

D=72
"I am the master of my fate, I am the captain of my soul" - Invictus|| UDT '12, MMDT '12, '11. Quora: http://www.quora.com/Omkar-Parab-1
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sumit99 Says
A father and his son starts at a pt. A wid speeds 12kmph and 18kmph and reach another pt. B. If his son starts 60 min. After his fathet at A and reaches 60 min earlier than his father. Wat is the distance between A and B.

the question says father has to travel 2 hrs more than son

diff between their speed is 6 km

so 6*4 = 24 km which will make the father to travel two hrs more

so 18*4 = 72 km
hope for the best
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