Boat-A's downstream speed is 18Km/hr. If Boat-A's speed (in still water) is 15.5Km/
hr, what distance will it cover upstream in 4hrs ? (In Km)
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Given,
Downstream speed = 18 km/hr
Speed in still water = 15.5 km/hr
To find,
The distance covered in upstream in 4 hours.
Solution,
We can simply solve this mathematical problem by using the following mathematical process.
Downstream speed = Speed of water flow + Speed of boat = 18 km/hr
Speed of water flow = Downstream speed - Speed of boat in still water = 18-15.5 = 2.5 km/hr
Speed in upstream = Boat speed - water flow speed = 15.5-2.5 = 13 km/hr
Distance travelled in 4 hours in upstream = (13×4) = 52 km
Hence, the travelled distance is 52 km.
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