The upstream speed of the boat is 40 km/hr and the speed of the boat in still water is 55 km/hr. What is the downstream speed of the boat?
A75 km/hr
B70 km/hr
C60 km/hr
D65 km/hr
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The time taken by the boat can travel 240 km distance along the stream is equal to the time taken by the boat can travel 144 km distance against the stream. The speed of the boat is 20 km/hr. Find the speed of the stream.
In one hour , a boat goes 11 km/hr along the stream and 5 km/hr against the stream . The speed of the boat in still water ( in km/hr) is :
A man rows to a place 35 km in distant and back in 10 hours 30 minutes. He found that he could row 5 km with the stream in the same time as he can row 4 km against the stream. Find the rate of flow of the stream.:
Speed of a boat is 5 km per hour in still water and the speed of the stream is 3 km per hour. If the boat takes 3 hours to go to a place and come back, the distance of the place is :