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Question

Directions:- Study the following information carefully to answer the question given below.

A, B, C, D. E, G, and I are seven friends who study in three different standards, namely 5th, 6th and 7th, such that not less than two friends study in the same standard. Each friend has a different favourite subject, namely History, Civics, English, Marathi, Hindi, Maths and Economics not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Marathi. I studies with two other friends. Both the friends who study with I like languages (here languages include only Hindi, Marathi and English). D studies in the 6th standard with only one person and does not like Civics. E studies with only one friend. The one who likes History does not study in the 5th or 6th standard. E does not like languages. C does not like English, Hindi or Civics.

Which of the following is I's favourite subject?

A
History
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B
Civics
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C
Marathi
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D
Either English or Marathi
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E
Either English or Hindi
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Solution

The correct option is A History
Seven friends A, B, C, D, E, G and I study in three different standard 5th, 6th and 7th. Each having a different favourite subject.
Condition:- Not less than two friends study in same standard.
According to the question,
A likes Maths and studies in 5th standard with only one other friend who likes Marathi.
A5thstdMaths
?5thstdMarathi
I studies with two other friends and those who study with I like Languages.
So, the person studying with I likes English and Hindi.
D studies in the 6th std with only person.
D does not like civics.
E studies with only one friend.
E does not like languages.
So, it is clear that E does not study with I.
D and E study in std. 6
The one who likes history does not study in 5th or 6th std. So. the one who studies History studies in 7th std.
Now, rough sketch of the above/information is:-
FriendsStandardFavourite subjectA5thMathsBCD6thE6thGI
C does not like English, Hindi, so C does not study with I.
I studies in std. 7. The person studying with I likes language and the one who studies History does not study in 5th or 6th standard. So, I likes History.
I7thstdHistory
C does not study with I, so C studies with A and likes Marathi.
C5thstdMarathi
So, B studies in std 7 and G also study in std 7; D, C. B and G does not like Civics. So, E likes Civics. Now D is left with Economics. Now, the above information is shown in tabular form as:-
FriendsStandardFavourite subjectA5thMathsB7thHindi/EnglishC5thMarathiD6thEconomicsE6thCivicsG7thHindi/EnglishI7thHistory

I's favourite subject is History.

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