pratiksahoo33's posts

pratiksahoo33
commented on an article

PS: Columbia Business School asked for a 140-character essay as part of its admissions application for the MBA admissions of 2012.
Concept, illustrations and graphics by Deepak Gopalakrishnan aka chuck_gopal, a Mallu-turned Mumbaiker who blogs here and tweets here.

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66 Comments

kanakgupta
hah! worth a few chuckles! Probably the future for B-scho....
09 Nov '11.

mathnik
This one's the best ever....
07 Mar '12.

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 3]

Is it (b)60?

take the min pythagorean triplets 3*4*5 = 60

take the min pythagorean triplets 3*4*5 = 60

1

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 3]

Is it (b)60?

take the min pythagorean triplets 3*4*5 = 60

take the min pythagorean triplets 3*4*5 = 60

1

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 2]

Use Eulers theorm Euler no of 89 = 88

(2^8*2/89 = 2/89

So remainder = 2

(2^8*2/89 = 2/89

So remainder = 2

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 2]

Is it (d ) 5.9 sec?

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 2]

If d gives a-b coins to a, then a will have 2a-2b coins

1

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 2]

Gen Term = nv=> n(n^2 + 2n + 1)=>n^3 +2*n^2 + n

S = ^2 + n(n+1)/2 + 2*n*(n+1)*(2n+1)/6

Put n = 20

S = 50050

S = ^2 + n(n+1)/2 + 2*n*(n+1)*(2n+1)/6

Put n = 20

S = 50050

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 2]

Let initially a,b,c,d

After 1st rnd, a-b,2b,c,d

After 2nd rnd,a-b,2b-c,2c,d

After 3rd rnd, a-b,2b-c,2c-d,2d

2d=48=>d=24

2c-d=48=>c=36

2b-c=48=>b=42

a-b=48=>a=90

So at any time we see that a has highest amount

So (c) 90

Whats the OA?

After 1st rnd, a-b,2b,c,d

After 2nd rnd,a-b,2b-c,2c,d

After 3rd rnd, a-b,2b-c,2c-d,2d

2d=48=>d=24

2c-d=48=>c=36

2b-c=48=>b=42

a-b=48=>a=90

So at any time we see that a has highest amount

So (c) 90

Whats the OA?

3

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 2]

Is it 101:119??

:=(3n+2):(4n-13)

=>: =(3n+2):(4n-13)

=> = (3n+2):(4n-13)

Put n = 33 and get the ans !!

:=(3n+2):(4n-13)

=>: =(3n+2):(4n-13)

=> = (3n+2):(4n-13)

Put n = 33 and get the ans !!

pratiksahoo33
replied to Official Quant Thread for CAT 2011 [Part 2]

Numbers coprime to 10 :- 300(1-1/2)(1-1/5)=120

Numbers coprime to 18 :- 300(1-1/2)(1-1/3)=100

Numbers coprime to 10 & 18: - 300 :- 300(1-1/2)(1-1/3)(1-1/5) = 80

So Total no's = 120 + 100 - 80 = 140

Whats the OA?

Numbers coprime to 18 :- 300(1-1/2)(1-1/3)=100

Numbers coprime to 10 & 18: - 300 :- 300(1-1/2)(1-1/3)(1-1/5) = 80

So Total no's = 120 + 100 - 80 = 140

Whats the OA?

2