Three are six teacher A, B, C, D , E and F in a school, Each teacher has to teach two subjects, one compulsory and the other optional. D’s optional is History, while three others have it as a compulsory subject, E and F have Physics as one of their subjects, F‘s compulsory subject in Mathematics, which is an optional subject of both C and E, History and English are A’s subject but in term of compulsory and optional subjects, they are reserved of D’s Chemistry is an optional subject of one of the teachers. There is only one female teacher, who has English as her compulsory subject. Who among the following , has chemistry as a subject?
Step-by-step Solution:
To answer this question, we must first determine the complete set of subject assignments for all six teachers by systematically applying all the given rules. This is the same set of deductions as in the previous related puzzle.
By logically combining all the clues, we can create a complete table of assignments. The key steps involve:
The fully solved puzzle results in the following table:
| Teacher | Gender | Compulsory Subject | Optional Subject |
|---|---|---|---|
| A | Male | History | English |
| B | Male | History | Chemistry |
| C | Male | History | Maths |
| D | Female | English | History |
| E | Male | Physics | Maths |
| F | Male | Maths | Physics |
The question asks who has Chemistry as a subject. By looking at the completed table, we can clearly see that teacher B has Chemistry as his optional subject.