On a island there were two kinds of people, liar and gentleman. A sailor landed there and saw three people, A, B and C. He asked A if he was a gentleman or liar. A replied but he did not hear him. He asked B, " What did he say?" B replied, " He said he was a liar. " C immediately shouted,"B is lying!"
Which one of these sentences are true?
a) B is a gentleman while C is a liar.
b) B is a liar while C is a gentleman.
c) It is inpossible to tell if A is a gentleman or liar
Wednesday, April 23, 2008
A maths olympiad question for u all
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4 comments:
The answer is (b
Anyone want the answer?[b]
coz...
1.if A is a liar,A will say,"I am a gentleman.",then there will be a contradiction[coz B say A liar],so B liar
2.If A is a gentleman,A will say,'I am a gentleman.'then contradiction again[coz B say A liar mah]sooooo...
B IS A LIAR!!!!
3.which means...A IS A GENTLEMAN!!!
4.and ...C IS A GENTLEMAN!!
FINAL CONCLUSION...
A:GENTLEMAN
B:LIAR
C:GENTLEMAN
got it??:)
this is the hwa chong maths olympiad right? I anyhow put one answer......
Answer is (b)
---Pratyay
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