(i) There is a group of five persons – A, B, C, D and E.
(ii) One of them is a horticulturist, one is a physicist, one is a journalist, one is an industrialist and one is an advocated.
(iii) Three of them – A, C and advocate prefer tea to coffee and two of them – B and the journalist prefer coffee to tea.
(iv) The industrialist and D and A are friend to one another but two of these prefer coffee to tea.
(v) The horticulturist is C`s brother.
Who is an industrialist ?
Answer: C
A prefers tea. So, from (iv), the industrialist and D prefer coffee. But, from (iii), B and the journalist prefer coffee. So, B is the industrialist and D is the journalist.
Now, A, C and advocate remain. Clearly, E is the advocate.
The horticulturist is C's brother. It can be only A. C is a physicist.
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|
A |
B |
C |
D |
E |
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Profession |
Horticulturist |
Industrialist |
Physicist |
Journalist |
Advocate |
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Profession |
Tea |
Coffee |
Tea |
Coffee |
Tea |
Hence, B is an industrialist.
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Which of the following groups includes a persons who likes tea but is not an advocate ?
Answer: E
A prefers tea. So, from (iv), the industrialist and D prefer coffee. But, from (iii), B and the journalist prefer coffee. So, B is the industrialist and D is the journalist.
Now, A, C and advocate remain. Clearly, E is the advocate.
The horticulturist is C's brother. It can be only A. C is a physicist.
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|
A |
B |
C |
D |
E |
|
Profession |
Horticulturist |
Industrialist |
Physicist |
Journalist |
Advocate |
|
Profession |
Tea |
Coffee |
Tea |
Coffee |
Tea |
Clearly, A and C are the persons who like tea but are not advocates
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Who is a physicist ?
Answer: D
A prefers tea. So, from (iv), the industrialist and D prefer coffee. But, from (iii), B and the journalist prefer coffee. So, B is the industrialist and D is the journalist.
Now, A, C and advocate remain. Clearly, E is the advocate.
The horticulturist is C's brother. It can be only A. C is a physicist.
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|
A |
B |
C |
D |
E |
|
Profession |
Horticulturist |
Industrialist |
Physicist |
Journalist |
Advocate |
|
Profession |
Tea |
Coffee |
Tea |
Coffee |
Tea |
Hence, C is the physicist.
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Which of the statements above is superfluous ?
Answer: E
A prefers tea. So, from (iv), the industrialist and D prefer coffee. But, from (iii), B and the journalist prefer coffee. So, B is the industrialist and D is the journalist.
Now, A, C and advocate remain. Clearly, E is the advocate.
The horticulturist is C's brother. It can be only A. C is a physicist.
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|
A |
B |
C |
D |
E |
|
Profession |
Horticulturist |
Industrialist |
Physicist |
Journalist |
Advocate |
|
Profession |
Tea |
Coffee |
Tea |
Coffee |
Tea |
Since all the statements are required to analyse the given data, none of them is superfluous
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There are five persons P, Q, R, S and T. One is football player, one is chess player and one is hockey player. P and S are unmarried ladies and do not participate in any game. None of the ladiesplays chess or football. There is a married couple in which T is the husband. Q is the brother of R and is neither a chese player nor a hockey player.
Who is the football player ?
Answer: B
Clearly, Q is neither a hockey player nor a chess player. So, he must be a football player and thus cannot be a lady. T is a husband (not a lady) and so must be a chess player. Hence, R must be a hockey player, and therefore she must be a lady and T's wife. So, the information can be summarised as follows :
P -- unmarried lady, does not participate in games.
Q -- brother of R, football player.
R -- hockey player, T's wife.
S -- unmarried lady, does not participate in games.
T -- husband of R, chess player
So, Q is the football player.
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Who is the hockey player ?
Answer: C
Clearly, Q is neither a hockey player nor a chess player. So, he must be a football player and thus cannot be a lady. T is a husband (not a lady) and so must be a chess player. Hence, R must be a hockey player, and therefore she must be a lady and T's wife. So, the information can be summarised as follows :
P -- unmarried lady, does not participate in games.
Q -- brother of R, football player.
R -- hockey player, T's wife.
S -- unmarried lady, does not participate in games.
T -- husband of R, chess player
So, R is the hockey player.
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Who is the chess player ?
Answer: E
Clearly, Q is neither a hockey player nor a chess player. So, he must be a football player and thus cannot be a lady. T is a husband (not a lady) and so must be a chess player. Hence, R must be a hockey player, and therefore she must be a lady and T's wife. So, the information can be summarised as follows :
P -- unmarried lady, does not participate in games.
Q -- brother of R, football player.
R -- hockey player, T's wife.
S -- unmarried lady, does not participate in games.
T -- husband of R, chess player
So, T is the chess player.
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Who is the wife of T ?
Answer: C
Clearly, Q is neither a hockey player nor a chess player. So, he must be a football player and thus cannot be a lady. T is a husband (not a lady) and so must be a chess player. Hence, R must be a hockey player, and therefore she must be a lady and T's wife. So, the information can be summarised as follows :
P -- unmarried lady, does not participate in games.
Q -- brother of R, football player.
R -- hockey player, T's wife.
S -- unmarried lady, does not participate in games.
T -- husband of R, chess player
So, R is the wife of T.
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The three ladies are :
Answer: D
Clearly, Q is neither a hockey player nor a chess player. So, he must be a football player and thus cannot be a lady. T is a husband (not a lady) and so must be a chess player. Hence, R must be a hockey player, and therefore she must be a lady and T's wife. So, the information can be summarised as follows :
P -- unmarried lady, does not participate in games.
Q -- brother of R, football player.
R -- hockey player, T's wife.
S -- unmarried lady, does not participate in games.
T -- husband of R, chess player
So, The three ladies are P, R and S.
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(i). P, Q, R, S, T and U are six members in a family in which there arfe two married couples.
(ii). T, a teacher is married to the doctor who is mother of R and U.
(iii). Q, the laywer is married to P.
(iv). P has one son and one grandson.
(v). Of the two married ladies one is a housewife.
(vi). There is also one student and one male engineer in the family.
Which of the following represents the group of females in the family ?
Answer: D
One couple is QP.
Now, R and U are the children of T. So, the other couple is TS.
T is a teacher.
S is a female doctor.
Q is a lawyer.
Clearly, P is a housewife and hence a female.
S is the mother of R and U.
P has one son and on grandson.
Clearly, T is the son of P and R or U is the grandson.
The grandson is a male engineer and the grand-daughter is a student.
Since the sex of R and U is not given, so the set of three females cannot be determined.
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