Question

Determine the speed of a Ship in calm water, given that the Ship's speed downstream is 20% greater than its speed in still water. If the Ship can cover 48 km both upstream and downstream in a total of 5 hours, what is the speed of the Ship in still water?

A 30 km/hr
B 20 km/hr
C 50 km/hr
D 45 km/hr
E none of these
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