A bus covered a certain distance from village A to village B at the speed of 60 km./hr. However, on its return journey it got stuck in traffic and covered the same distance at the speed of 40 km/hr. and took 2 hours more to reach its destination. What is the distance covered between village A and B?
a) 240 km.
b) 260 km.
c) 200 km.
d) 300 km
Sol:
Let the distance between villages A and B be x km.