Math, asked by shrutimugu02, 3 months ago

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

Answers

Answered by seemssharma2017

2

Answer:

70km/h

Step-by-step explanation:

Let the speed of two trains be 7x and 8x km/hr.

Then, 8x=( 400/5)=80

x=10

∴ Speed of first train = (7 x 10) km/hr = 70km/hr.

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