Freshers India

A boat covers a certain distance downstream in 2 hours but takes 4 hours to return upstream to the starting point. If the speed of the stream be 3 km/hr, find the speed of the boat in still water.?                          

A boat covers a certain distance downstream in 1 hour, while it comes back in 1hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water??                          

In a river flowing at 2 km/hr, a boat travels 32 km upstream and then returns downstream to the starting point. If its speed in still water be 6 km/hr, find the total journey time.?                          

The Speed of a boat in still water is 20 kmph. If it can travel 16 km upstream in 1 hr., What time it would take to travel the same distance downstream??                          

A man can row 18 kmph in still water. It takes him thrice as long to row up as to row down the river. Find the rate of stream.?                          

In a stream running at 2 kmph, a motorboat goes 6 km upstream and back again to the starting point in 33 minutes. Find the speed of the motorboat in still water.?