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by Advaita
September 13th, 2007, 9:33 pm
Forum: Brainteaser Forum
Topic: abracadabra
Replies: 18
Views: 71212

abracadabra

by Advaita
September 13th, 2007, 8:47 pm
Forum: Brainteaser Forum
Topic: Logic qn
Replies: 6
Views: 67559

Logic qn

@brent. He is truthful, so there is no chance he'd be dishonest. SPOILER:11111111111111111111111111111111111How about: Would you answer this question with a "no"? 11111111111111111111111111111111111
by Advaita
September 13th, 2007, 3:58 pm
Forum: Brainteaser Forum
Topic: abracadabra
Replies: 18
Views: 71212

abracadabra

@26^11 + etc..Wait... if ABCDEFGHIJKL requires 26^11, then shouldn't ABRACADABRA be <26^11 because of the shortcuts mentioned below?
by Advaita
September 13th, 2007, 1:27 pm
Forum: Brainteaser Forum
Topic: Logic qn
Replies: 6
Views: 67559

Logic qn

What qn do you ask a truthful person to force him to lie? He has to answer either yes or no.
by Advaita
September 12th, 2007, 7:12 pm
Forum: Brainteaser Forum
Topic: abracadabra
Replies: 18
Views: 71212

abracadabra

<t>"The expected time to see a particular sequence of 11 characters is 26^11=3670344486987776."Part A.I have problem with the quoted part.Would ABRACADABRA turn up faster than ABCDEFGHIJKL? I think it will because ...ABRA -> ABRAC or ABRAB or ABRAx where {x is not C or B} but that speeds up the proc...
by Advaita
September 12th, 2007, 6:54 pm
Forum: Brainteaser Forum
Topic: if human can live 1000 yrs
Replies: 22
Views: 71886

if human can live 1000 yrs

I can't believe the number of responses to this whorebag's idiotic qn when there are other more interesting problems to be solved on this forum.sorry, but i hope at least some will concur
by Advaita
August 14th, 2007, 7:49 pm
Forum: Brainteaser Forum
Topic: CMO reverse engineering
Replies: 3
Views: 69808

CMO reverse engineering

Cut his johnson off!
by Advaita
August 14th, 2007, 4:24 pm
Forum: Brainteaser Forum
Topic: how much for a dice game?
Replies: 29
Views: 133771

how much for a dice game?

<t>From the I_love_recursions_DEPTLet X(M) be the value of the game when there is M pounds in the pot alreadyA. For original problem --So X(M) = 1/2X(M+1)+1/3M + 1/6*0This is a linear difference equation giving X(M) = 2^M + 2/3M + 2/3As we start with 0pounds, X(0) = 2/3 is the valueB. For modified p...
by Advaita
August 1st, 2007, 4:17 pm
Forum: Brainteaser Forum
Topic: List of Puzzle books (please contribute)
Replies: 2
Views: 68901

List of Puzzle books (please contribute)

<t>QUESTIONS:1. I thought this was the best forum to post: What are some great math/logic puzzle books?While there are great websites with puzzles, some book authors take special care to make EVERY problem look more fun/original. Please add your suggestions.2. Are there any good magazine subscriptio...
by Advaita
July 5th, 2007, 3:06 pm
Forum: Brainteaser Forum
Topic: Works of art!
Replies: 11
Views: 71313

Works of art!

Label each painting with the son's name. So each painting has 3 possibilities. And 10 paintings will have 3^10
by Advaita
June 1st, 2007, 4:02 pm
Forum: Brainteaser Forum
Topic: Interview Question
Replies: 10
Views: 74512

Interview Question

<t>Given 6 points, but excluding any triangles --I divide the various ways of connecting these points by identifying the "largest polygon" of connections1. Line 2. 4-sided3. 5-sided4. 6-sidedLine: at most 2 are connected. We can easily select 3.5-sided: Visualise a "planar pentagon" and a floating s...
by Advaita
May 2nd, 2007, 12:23 pm
Forum: General Forum
Topic: Cap vols vs swaptions at low strike
Replies: 2
Views: 72377

Cap vols vs swaptions at low strike

So what are the real reasons?
by Advaita
May 1st, 2007, 8:41 pm
Forum: General Forum
Topic: Cap vols vs swaptions at low strike
Replies: 2
Views: 72377

Cap vols vs swaptions at low strike

Why are cap vols for low strikes really high (compared to recvr swaptions)?I believe these are the more imp reasons. Could someone please quantify them?1. Rate cuts premium2. Low correlation with corresponding swap rate at lower levels.thx
by Advaita
April 17th, 2007, 1:47 pm
Forum: Brainteaser Forum
Topic: $ change
Replies: 14
Views: 77678

$ change

n+m people in queue to buy 5$ tickets.n have 5$ and m have 10$. n>=m+1The ticket seller starts with no change.What is the probability that everybody gets their change back.
by Advaita
April 13th, 2007, 1:58 pm
Forum: General Forum
Topic: What is the most important reason for skew in the rates vol curve?
Replies: 3
Views: 74371

What is the most important reason for skew in the rates vol curve?

Could you elaborate on this more please? Why is dvega dvol negative for OTM? Also how does that explain skew?
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