Aptitude - Time and Distance - Discussion

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Q.

The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, then the speed of the first train is:                         
A. 70 km/hr B. 75 km/hr
C. 84 km/hr D. 87.5 km/hr

Answer: Option D
Explaination:

 


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