Question

1.    A passenger train, running at a speed of 80 km/hr leaves a railway station 6 hours after a goods train leaves and overtakes it in 4 hours. What is the speed of the goods train ?​

Answer 1

The speed of goods train is 32km/hr

1) Here, the distance travelled by the express train and goods train would be equal at the point of intersection.

2) Time taken by passenger train is 4 hrs and the speed is 80 km/hr.

Hence the distance travelled would be 80*4 = 320

3) Time taken by goods train is 6+4 =10 hours and the distance is same i.e 320 km

4) Hence the speed of goods train is 320/10 = 32 km/hr