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
(a) 10 Km/hr (b) 50 Km/hr (c) 70 Km/hr (d) none of these​

Answer 1

hope it helps..........

Answer 2

Answer:

c) 70 km/hr

Step-by-step explanation:

400/5 = train speed of 1 hour = 80 km/hr

then divide 80 by 8 and then multiply the answer by 7 and the new answer is the speed of 1st train.