Official Quant thread for CAT 2013

@gs4890 said:
@lopagargg@pankaj1988@aimingCAT124 participants till now ; am sure more will come as we gain some momentum I'll start with 5 questions followed by @pankaj1988 ,@aimingCAT12, @lopagargHerz the starter - 99. A bag contains 8 red and 6 blue balls. If 5 balls aredrawn at random, what is the probability that 3 ofthem are red and 2 are blue?A. 80/143 B. 50/143C. 75/143 D. None of the aboveIIFT 11
should be D. None of these.
@gs4890 said:

@lopagargg
@pankaj1988
@aimingCAT12

4 participants till now ; am sure more will come as we gain some momentum
I'll start with 5 questions followed by @pankaj1988 ,@aimingCAT12 , @lopagarg

Herz the starter -

99. A bag contains 8 red and 6 blue balls. If 5 balls are
drawn at random, what is the probability that 3 of
them are red and 2 are blue?
A. 80/143 B. 50/143
C. 75/143 D. None of the above

IIFT 11

option D. none of these.?
@gs4890 said:
@lopagargg@pankaj1988@aimingCAT124 participants till now ; am sure more will come as we gain some momentum I'll start with 5 questions followed by @pankaj1988 ,@aimingCAT12, @lopagargHerz the starter - 99. A bag contains 8 red and 6 blue balls. If 5 balls aredrawn at random, what is the probability that 3 ofthem are red and 2 are blue?A. 80/143 B. 50/143C. 75/143 D. None of the aboveIIFT 11
D, agar maine koi calculation mistake nhi ki ho to 60/143 aa raha hai :splat:
@gs4890 said:
@lopagargg@pankaj1988@aimingCAT124 participants till now ; am sure more will come as we gain some momentum I'll start with 5 questions followed by @pankaj1988 ,@aimingCAT12, @lopagargHerz the starter - 99. A bag contains 8 red and 6 blue balls. If 5 balls aredrawn at random, what is the probability that 3 ofthem are red and 2 are blue?A. 80/143 B. 50/143C. 75/143 D. None of the aboveIIFT 11
total 14 balls
14C5 = 2002
8C3*6C2 = 840
840/2002 = 60/143
So none of these

all possible pairs are formed from the divisors of 21600. how many such pairs have hcf = 45
a.8
b.276
c.34
d.49

@gs4890 said:
Q.2 - In a circle, the height of an arc is 21 cm and the
diameter is 84 cm. Find the chord of 'half of the arc'.
A. 45 cm B. 40 cm
C. 42 cm D. None of the above


will be 42 cm.
The result of class 10 is declared. half of those who failed in english managed to pass in math and 1/3rd of who falied in math managed to pass in english.every student of this class passed in exactly one subject. the ratio of the number of students who passed in english to the number of students who passed in maths is,
1:3
2:3
1:2
2:1
3:2

@gs4890 said:
Q.2 - In a circle, the height of an arc is 21 cm and thediameter is 84 cm. Find the chord of 'half of the arc'.A. 45 cm B. 40 cmC. 42 cm D. None of the above
42?
@blade014
@chandrakant.k
@rachit_28
@blade014
@aimingCAT12
@pankaj1988
@Torque024

@mailtoankit
@lopagargg

Yo man !! Thatz what i wanted 😉

So, just to inform the latecomers:sneaky: , this is the IIFT quant even going on. I am the first one to post 5 question(have already posted 2). @pankaj1988 will be the next one to post 5 q's, after that anyone can volunteer.

Even will go on till 4am or more for die hard IIFT lovers ;)

Q.3

Mr. and Mrs. Gupta have three children - Pratik,
Writtik and Kajol, all of whom were born in different
cities. Pratik is 2 years elder to Writtik. Mr. Gupta
was 30 years of age when Kajol was born in
Hyderabad, while Mrs. Gupta was 28 years of age
when Writtik was born in Bangalore. If Kajol was 5
years of age when Pratik was born in Mumbai, then
what were the ages of Mr. and Mrs. Gupta
respectively at the time of Pratik's birth?

A. 35 years, 26 years B. 30 years, 21 years
C. 37 years, 28 years D. None of the above


@catter2011 said:
The result of class 10 is declared. half of those who failed in english managed to pass in math and 1/3rd of who falied in math managed to pass in english.every student of this class passed in exactly one subject. the ratio of the number of students who passed in english to the number of students who passed in maths is,1:32:31:22:13:2
1:2?
@catter2011 said:
The result of class 10 is declared. half of those who failed in english managed to pass 3:2
@realslimshady said:
all possible pairs are formed from the divisors of 21600. how many such pairs have hcf = 45 a.8
IIFT event going on ; avid spamming please 😛

Please participate in the event rather 😃
@realslimshady said:
all possible pairs are formed from the divisors of 21600. how many such pairs have hcf = 45 a.8 b.276 c.34 d.49
a. 8 ?
@gs4890 said:
@[email protected]@rachit_28@blade014@aimingCAT12@pankaj1988@Torque024@mailtoankit@lopagarggYo man !! Thatz what i wanted So, just to inform the latecomers , this is the IIFT quant even going on. I am the first one to post 5 question(have already posted 2). @pankaj1988 will be the next one to post 5 q's, after that anyone can volunteer.Even will go on till 4am or more for die hard IIFT lovers Q.3Mr. and Mrs. Gupta have three children - Pratik,Writtik and Kajol, all of whom were born in differentcities. Pratik is 2 years elder to Writtik. Mr. Guptawas 30 years of age when Kajol was born inHyderabad, while Mrs. Gupta was 28 years of agewhen Writtik was born in Bangalore. If Kajol was 5years of age when Pratik was born in Mumbai, thenwhat were the ages of Mr. and Mrs. Guptarespectively at the time of Pratik's birth?A. 35 years, 26 years B. 30 years, 21 yearsC. 37 years, 28 years D. None of the above
Option A?
@realslimshady said:
all possible pairs are formed from the divisors of 21600. how many such pairs have hcf = 45 a.8 b.276 c.34 d.49
my approach: 21600=2^6*3^3*^3
hcf=45=3^2*5
hcf*rest =45*2^6*3*5^2
pairs=7*2*3=42 ....what's wrong in my approach(45 to rahega hi isliye uske factors count nhi kiye)

@maddy2807
@gs4890 said:
@[email protected]@rachit_28@blade014@aimingCAT12@pankaj1988@Torque024@mailtoankit@lopagarggYo man !! Thatz what i wanted So, just to inform the latecomers , this is the IIFT quant even going on. I am the first one to post 5 question(have already posted 2). @pankaj1988 will be the next one to post 5 q's, after that anyone can volunteer.Even will go on till 4am or more for die hard IIFT lovers Q.3Mr. and Mrs. Gupta have three children - Pratik,Writtik and Kajol, all of whom were born in differentcities. Pratik is 2 years elder to Writtik. Mr. Guptawas 30 years of age when Kajol was born inHyderabad, while Mrs. Gupta was 28 years of agewhen Writtik was born in Bangalore. If Kajol was 5years of age when Pratik was born in Mumbai, thenwhat were the ages of Mr. and Mrs. Guptarespectively at the time of Pratik's birth?A. 35 years, 26 years B. 30 years, 21 yearsC. 37 years, 28 years D. None of the above
A) 35, 36 ?
@gs4890 said:
Q.3Mr. and Mrs. Gupta have three children - Pratik,Writtik and Kajol, all of whom were born in differentcities. Pratik is 2 years elder to Writtik. Mr. Guptawas 30 years of age when Kajol was born inHyderabad, while Mrs. Gupta was 28 years of agewhen Writtik was born in Bangalore. If Kajol was 5years of age when Pratik was born in Mumbai, thenwhat were the ages of Mr. and Mrs. Guptarespectively at the time of Pratik's birth?A. 35 years, 26 years B. 30 years, 21 yearsC. 37 years, 28 years D. None of the above

Take - A

Q.4

Mr. Sinha received a certain amount of money by
winning a lottery contest. He purchased a new
vehicle with 40 percent of the money received. He
then gave 20 percent of the remaining amount to
each of his two sons for investing in their business.
Thereafter, Mr. Sinha spent half of the remaining
amount for renovation of his house. One-fourth of
the remaining amount was then used for purchasing
a LCD TV and the remaining amount - Rs. 1,35,000/
- was deposited in a bank. What was the amount
of his cash prize?

A. Rs. 10,00,000/- B. Rs. 9,00,000/C.
Rs. 8,00,000/- D. None of the above


@gs4890 said:

Mr. and Mrs. Gupta have three children - Pratik,Writtik and Kajol, all of whom were born in differentcities. Pratik is 2 years elder to Writtik. Mr. Guptawas 30 years of age when Kajol was born inHyderabad, while Mrs. Gupta was 28 years of agewhen Writtik was born in Bangalore. If Kajol was 5years of age when Pratik was born in Mumbai, thenwhat were the ages of Mr. and Mrs. Guptarespectively at the time of Pratik's birth?A. 35 years, 26 years B. 30 years, 21 yearsC. 37 years, 28 years D. None of the above
A?

@gs4890 said:
@[email protected]@rachit_28@blade014@aimingCAT12@pankaj1988@Torque024@mailtoankit@lopagarggYo man !! Thatz what i wanted So, just to inform the latecomers , this is the IIFT quant even going on. I am the first one to post 5 question(have already posted 2). @pankaj1988 will be the next one to post 5 q's, after that anyone can volunteer.Even will go on till 4am or more for die hard IIFT lovers Q.3Mr. and Mrs. Gupta have three children - Pratik,Writtik and Kajol, all of whom were born in differentcities. Pratik is 2 years elder to Writtik. Mr. Guptawas 30 years of age when Kajol was born inHyderabad, while Mrs. Gupta was 28 years of agewhen Writtik was born in Bangalore. If Kajol was 5years of age when Pratik was born in Mumbai, thenwhat were the ages of Mr. and Mrs. Guptarespectively at the time of Pratik's birth?A. 35 years, 26 years B. 30 years, 21 yearsC. 37 years, 28 years D. None of the above
A??
@pankaj1988 same..
and sorry i had no idea that iift event was going on.. will comeback later