Question

The ratio between the speeds of two trains is 7 : 8. If the second train runs 400

kms. in 5 hours, the speed of the first train is​

Answer 1

Answer:

if 400km/5 hours than it should be 80km/hr

so the speed of first train would be 70km/hr

Answer 2

Let the speeds be = 7x, 8x

Then: Speed = Distance/Time

=> 8x = 400/5

=> x = 10 km/h

Speed of train 1 = 70 km/h