UPSC Exam  >  UPSC Questions  >  There are six teachersA, B, C, D, EandFin a s... Start Learning for Free
There are six teachers A, B, C, D, E and F in a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject. D's optional subject is History while three others have it as compulsory subject. E and F have Physics as one of their subjects. F's compulsory subject is Mathematics which is an optional subject of both C and E. History and English are A's subjects but in terms of compulsory and optional subjects, they are reverse of those of D's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.
Q. Which of the following groups of teachers has History as the compulsory subject?
  • a)
    A, C and D
  • b)
    B, C and D
  • c)
    C and D
  • d)
    A, B and C
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
There are six teachersA, B, C, D, EandFin a school. Each of the teache...
A, B and C have History as the compulsory subjects
View all questions of this test
Most Upvoted Answer
There are six teachersA, B, C, D, EandFin a school. Each of the teache...
Solution:

Given information:

- There are six teachers A, B, C, D, E, and F.
- Each teacher teaches two subjects - one compulsory and one optional.
- D's optional subject is History.
- Three teachers have History as their compulsory subject.
- E and F have Physics as one of their subjects.
- F's compulsory subject is Mathematics which is an optional subject of both C and E.
- History and English are A's subjects but in terms of compulsory and optional subjects, they are reverse of those of D.
- Chemistry is an optional subject of any one of them.
- There is only one female teacher in the school who has English as her compulsory subject.

To find: The group of teachers who have History as their compulsory subject.

Solution:

From the given information, we can make the following table:

| Teacher | Compulsory Subject | Optional Subject |
|---------|-------------------|------------------|
| A | English | History |
| B | | |
| C | | |
| D | History | |
| E | | |
| F | Mathematics | Physics |

- D has History as an optional subject. Therefore, D's compulsory subject is not History.
- Three teachers have History as their compulsory subject. Therefore, the remaining three teachers must have History as their optional subject.
- E and F have Physics as one of their subjects. Therefore, A, B, C, and D must have Physics as their optional subject.
- F's compulsory subject is Mathematics which is an optional subject of both C and E. Therefore, neither of C or E can have Mathematics as their compulsory subject.
- History and English are A's subjects but in terms of compulsory and optional subjects, they are reverse of those of D. Therefore, A's compulsory subject is not History.
- Chemistry is an optional subject of any one of them. Therefore, we cannot determine which teacher has Chemistry as an optional subject.

Using the above deductions, we can fill in the table as follows:

| Teacher | Compulsory Subject | Optional Subject |
|---------|-------------------|------------------|
| A | English | History |
| B | Physics | History |
| C | Physics | History |
| D | | History |
| E | Physics | History |
| F | Mathematics | Physics |

- D's compulsory subject is Physics.
- Therefore, the group of teachers who have History as their compulsory subject is A, B, and C.

Hence, the correct option is D.
Free Test
Community Answer
There are six teachersA, B, C, D, EandFin a school. Each of the teache...
D
Explore Courses for UPSC exam

Similar UPSC Doubts

There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer?
Question Description
There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer?.
Solutions for There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice There are six teachersA, B, C, D, EandFin a school. Each of the teachers teaches two subjects, one compulsory subject and the other optional subject.D's optional subject is History while three others have it as compulsory subject.EandFhave Physics as one of their subjects.F's compulsory subject is Mathematics which is an optional subject of bothCandE. History and English areA's subjects but in terms of compulsory and optional subjects, they are reverse of those ofD's. Chemistry is an optional subject of any one of them. There is only one female teacher in the school who has English as her compulsory subject.Q. Which of the following groups of teachers has History as the compulsory subject?a)A, C and Db)B, C and Dc)C and Dd)A, B and CCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam
Signup to solve all Doubts
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev