question_answer

The average speed of a train is 20% less on the return journey than on the onward journey. The train halts for half an hour at the destination station before starting on the return journey. If the total time taken for the ?to and fro? journey is 23 h, covering a distance of 1000 km, the speed of the train on the return journey is

A)  60 km/h approx

B)  40 km/h approx.

C)  50 km/h approx

D)  55 km/h approx

E)  None of these