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 knight and knave
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Posted on 09-12-06 9:16 PM     Reply [Subscribe]
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you are going to an island. the island is inhabited by two kinds of natives. one group is knights who always tell the truth and the other group is knaves who always lie.
when you visit the island, A and B approach you.

A: B is a knight
B: A and I are of opposite types.

so the question is, who is A and who is B?
 
Posted on 09-12-06 9:39 PM     Reply [Subscribe]
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both are knaves?

Scenario 1:
If A was telling the truth then B equals to knight?
so if B was a knight and says they are both of opposite types?but then A was supposed to be tellin the truth?so doesnt match!

Scenario 2:
If A was not tellin the truth, B equals to a knave?so its a lie when B says they are both are of opposite sides?

hence both are knaves and lying?

answer pls!!is there some twist there! :o| curious :oS
 
Posted on 09-12-06 9:50 PM     Reply [Subscribe]
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Both are knave. A boolean algebra problem we used to solve back in college.
 
Posted on 09-12-06 9:51 PM     Reply [Subscribe]
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Their breed mixed up and both r lying ! hehe
 
Posted on 09-12-06 9:52 PM     Reply [Subscribe]
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i actuall ycame across it recently in this puzzle book and i could not figure it outtt..i was talking so loudly to myself everybody else asked me to shut up. but then i cheated, lookied it up in the internet (google is my savior!) and found the answer. but good job anyonymous.
 
Posted on 09-12-06 10:01 PM     Reply [Subscribe]
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Ms LFC123,
it's a famous puzzle in math, in case you don't know! and albeit it can be solved by boolean logic...the most accomplished method that i know and the world has known as of now, is first order logic.
i would have typed the whole solution mathematically but i am too busy for it right now!

if you want us to reiterate the answer or applause you for raising a great question of all time in sajha, here's the answer for you for your solace
both are knave

g'night
LooTe
 
Posted on 09-12-06 10:05 PM     Reply [Subscribe]
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I am sorry for the typo

Both are "knights"

LooTe
 
Posted on 09-12-06 10:06 PM     Reply [Subscribe]
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i am not raising any great question.
this was completely new to me and i didn't even know it was a famous question, apparently it is. i just wanted to know how would people solve it.
and loote, grow up. jhagadalu kutta.
 
Posted on 09-12-06 10:07 PM     Reply [Subscribe]
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how can both be knights? they are both knaves like two people said earlier.
 
Posted on 09-12-06 10:13 PM     Reply [Subscribe]
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i don't see the proof.

LooTe
 
Posted on 09-12-06 10:13 PM     Reply [Subscribe]
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i can solve it for you, but i need 100 bucks an hour--my normal wage!
 
Posted on 09-12-06 10:15 PM     Reply [Subscribe]
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sure. would you prefer a check or should i transfer it directly to your bank account?
 
Posted on 09-12-06 10:20 PM     Reply [Subscribe]
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oi enuf of wastin time on the check sheck etc ;oP

im runnin late here!!!!oi loote bro if u have time!chito!!!wanna see how both could be knights..kinda had(and still have) a feeln it aint as straight as it seemed hehe..when is anythin that straight eh?;oP

and im sure it wont take an hr will it?dun rip off someone hah!ajjai fellow nepali ho!;oP hehe

la la..gonna wait for another 20mins(i hope!arghhh!!im late!:o| wat am i doin!:o| hehe)
 
Posted on 09-12-06 10:54 PM     Reply [Subscribe]
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hahahaha....anon bro, ke ho, you still there!!! you are right, i just wanted to confuse/harass lfc123, which i am sure she is still :P. your method is analytical and mine is mathematical which is actually derived from analytical method. so the result must be same. i will show it later on..too busy right now and too lazy to type in crazy characters for those boolena analysis. dun mind me!

LooTe
 


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