80 km/h
85 km/h
90 km/h
75 km/h
A boat can covers a distance of 12 km in 4 hours in downstream direction, while the same distance covers in 6 hours in upstream direction. What is the speed of the boat in still water ?
A boat can travel 10 km/ hr in still water. If the speed of the the stream is 6 km/hr, then what will be the time taken by the boat to travel 40 km in upstream direction ?
A boat can travel 15 km/ hr in still water. If the speed of the the stream is 3 km/hr, then what will be the time taken by the boat to travel 72 km in downstream direction ?
A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
A boat can travel with a speed of 9 km/hr in still water. If the speed of the stream is 3 km/hr, then what time will be taken by boat to travel 60 km in downstream direction ?
A boat covers 48 km upstream and 72 km downstream in 12 hours, while it covers 72 km upstream and 48 km downstream in 13 hours The speed of stream is :
A boat covers a certain distance downstream in 1 hour, while it comes back in 1.5 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?
A boat covers a certain distance downstream in 4 h but takes 6 h to return upstream to the starting point. If the speed of the stream is 2 km/h, find the speed of the boat in still water.
A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:
A boat is rowed downstream at 16.5 km/hr and upstream at 9.5 km/hr. The speed of the stream is
