Q: 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 one third, so it takes 3 hours more than 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
Correct Answer:
Option A -
Explanations:
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