Q: A train covers 450 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less to cover the same distance. How much time will it take to cover 315 km at its usual speed?
A.
6 h 30 m
B.
7 h
C.
7 h 52 m
D.
6 h 18 m
Correct Answer:
Option B -
Explanations:
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