A person travels 285 km in 6 hrs. First he took a bus and travelled at the speed of 40 km per hr. In the second part of the journey, he took a bus and travelled at the speed 55 km per hr. What distance did he travel by train?
In this question, the alligation method is applicable for the speed.
∴time spent in bus : time spent in train=456:456=1:1∴Distance travelled by train=2852=142.5km