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This topic is not avialable

Dewashish singh

· started a discussion

· 1 Months ago

wrong answer (Question: 200699.0 )

opt d is correct..... Eng popular teacher is inside popular teacher and unpopular teacher is separate

vishnu

· started a discussion

· 1 Months ago

wrong answer (Question: 200699.0 )

english teacher some of them popular and some of them unpopular,no two is one

Ankit Mohla

· started a discussion

· 1 Months ago

wrong answer (Question: 200699.0 )

should be B

Question:
Which one of the following figures represent the relationship among English Teachers, Popular English Teachers and Unpopular Teachers? 
Options:
A)
B)
C)
D)
Solution:
The answer is (b) because you can be for being a popular English teacher, you have to be an English teacher. Similarly, unpopular teachers can be English teachers too (but never popular English teachers!).

If you still need some formalism, let:

A denotes the set of English teachers

B denotes the set of popular English teachers

C denotes the set of unpopular teachers

Then B⊆AB⊆A and B∩C=∅, B∩C=∅.

But since as far as we know nothing is said that A∩C=∅A∩C=∅ too.

Hence, option(b) is the correct answer.

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