D, B and A were teaching which of the following subjects ?
Answer: C
Above information can be analysed as below:
|
|
English |
Hindi |
Mathmatics |
Geography |
History |
French |
|
A |
X |
X |
X |
|
|
|
|
B |
X |
X |
|
|
X |
X |
|
C |
X |
|
|
X |
|
|
|
D |
|
X |
X |
|
|
|
|
E |
|
|
|
|
X |
X |
Hence,D,B and A were teaching Hindi