1 Answers
Option 1 : T2, T4, T5 and T6
Seven teachers: T1, T2, T3, T4, T5, T6, and T7.
1) Either T1 or T2 should be selected with T5.
| Case - 1 | Case - 2 |
| T1 | T2 |
| T5 | T5 |
2) T4 and T7 cannot be selected together.
Either T4 or T7 was selected.
| Case - 1 | Case - 1(a) | Case - 2 | Case - 2(a) |
| T1 | T1 | T2 | T2 |
| T5 | T5 | T5 | T5 |
| T4 | T7 | T4 | T7 |
3) Either T7 or T5 should be selected with T6.
Case - 1(a) and Case - 2(a) get eliminated because T5 and T7 are both not selected together.
| Case - 1 | Case - 2 | Case - 3 |
| T1 | T2 | T1 |
| T5 | T5 | T5 |
| T4 | T4 | T7 |
| T6 | T6 |
4) Either T3 or T6 should be selected with T2.
So, Case - 1, Case - 3 gets eliminated.
| Case - 2 |
| T2 |
| T5 |
| T4 |
| T6 |
Hence, option (4) is the correct answer.
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