Question

The exam begins at 2pm. The train will reach the 50 kms bus and 175 kms from the train. The average speed of the bus is 20 km / hour and the average speed of the train is 50 km / h. If you want to arrive at the examination center 1 hour ago, how many hours have to go home?

Answer 1

Time taken by bus =50/20=2.5 hour

......................By train =175/50= 3.5 hour

Total time on travel =2.5 +3.5 =6 hour

So you have to go (6+1)= 7 hours ago.