RE: Logic Qn. Need help.
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4 Married couples, with names A,B,C,D,E,F,G,H. Meet for a game of Chinese Chess.
They form four groups of two players. The following Information is given.
- B plays against E
- A plays against C's Wife
- F plays against G's husband
- D plays against A's Wife
- G plays against E's husband
The wife of B is:
1) E 2) F 3) G 4) H
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A boy and a girl were the only two people in a park.
"I'm a boy" said the one with black hair.
"I'm a girl" said the one with red hair.
At least one of them was lying. Which of these statesment(s) is correct.
1) The colour of the boy's hair is red
2) The colour of the girl's hair is black
3) The colour of the boy's hair is black
4) The colour of the girl's hair is red
V) Not enough resources to conclude
W) Only statement 1
X) Only statements 1 and 2
Y) Only statements 3 and 4
Z)Only statement 4
Please show your workings
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My damn inefficient methodOriginally posted by SBS1984E:4 Married couples, with names A,B,C,D,E,F,G,H. Meet for a game of Chinese Chess.
They form four groups of two players. The following Information is given.
- B plays against E
- A plays against C's Wife
- F plays against G's husband
- D plays against A's Wife
- G plays against E's husband
The wife of B is:
1) E 2) F 3) G 4) H
First look
Males: A B C D
Females: E F G H => Came from answer... I presume...
A plays against C's Wife => E's husband is not C
D plays against A's Wife => E's husband is not A
G plays against E's husband => E's husband is not B because B plays against E, not G.
Thus, E's husband is D
G plays against E's husband (D) and D plays against A's Wife
So A's wife is G
F plays against G's husband (A) and A plays against C's Wife
So C's wife is F
So B's wife is H. -
Supposed the lie isOriginally posted by SBS1984E:A boy and a girl were the only two people in a park.
"I'm a boy" said the one with black hair.
"I'm a girl" said the one with red hair.
At least one of them was lying. Which of these statesment(s) is correct.
1) The colour of the boy's hair is red
2) The colour of the girl's hair is black
3) The colour of the boy's hair is black
4) The colour of the girl's hair is red
V) Not enough resources to conclude
W) Only statement 1
X) Only statements 1 and 2
Y) Only statements 3 and 4
Z)Only statement 4
"I'm a boy" said the one with black hair... => means black hair must be girl
And means the other also must be boy (also lying)=> red hair
Supposed the lie is
"I'm a girl" said the one with red hair.... => means red hair must be boy
Also means the other one must be a girl (also lying) => black hair
Both lying also same results
So girl has black hair and boy has red hair.
Thus, answer is
X) Only statements 1 and 2 -
Yeap E F G H are feamales. (No Gay relationship horOriginally posted by eagle:My damn inefficient method
First look
Males: A B C D
Females: E F G H => Came from answer... I presume...) 
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Never say earlier... Made me think so long who is male and who is femaleOriginally posted by SBS1984E:Yeap E F G H are feamales. (No Gay relationship hor) 
All info must be present next time hor. -
A boy and a girl were the only two people in a park.
"I'm a boy" said the one with black hair.
"I'm a girl" said the one with red hair.
At least one of them was lying. Which of these statesment(s) is correct.
1) The colour of the boy's hair is red
2) The colour of the girl's hair is black
3) The colour of the boy's hair is black
4) The colour of the girl's hair is red
V) Not enough resources to conclude
W) Only statement 1
X) Only statements 1 and 2
Y) Only statements 3 and 4
Z)Only statement 4
Please show your workingsCondition: at least one of them is lying.
Case 1:
both are lying, then black hair=girl, red hair = boy.Case 2:
suppose first one is lying, black hair=girl. Since there must be one boy and one girl, the red hair = boyCase 3: Suppose the second one is lying, then red hair = boy. Since there must be one boy and one girl, the black hair = girl
All 3 cases hold the same conclusion.
(1) and (2) are satisfied.
Answer: XOops already answered by eagle.