In a school, there were five teachers. A and B were teaching Hindi and English. C and D were teaching English and Geography. D and A were teaching Mathematics and Hindi E and B were teaching History and French.
More than two teachers were teaching which subject ?
Ajay left home for the bus stop 15 minutes earlier than usual. It takes 10 minutes to reach the stop. He reached the stop at 8.40 a.m. What time does he usually leave home for the bus stop ?