Train A takes 1 hour more than train B to travel a distance of 720 km. – McqOptions

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1.	Train A takes 1 hour more than train B to travel a distance of 720 km. Due to engine trouble speed of train B falls by a third, so it takes 3 hours more thanÂ Train A to complete the same journey? What is the speed of Train A (in km/hr)?
A.	80
B.	90
C.	60
D.	70
Answer» B. 90

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