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Question 1
The speed of the current is 2 km /h. A boat goes 20 km upstream and back again to the starting point in 110 min. What is the speed of the boat in still water?
Question 2
A Boat rowed down the river at 18 Km/h and rowed up the river at 8 km/h. What is the velocity of stream?
Question 3
The current of a stream runs at the rate of 4 km an hour. A boat goes 6 km and comes back to the starting point in 2 hours. The speed of the boat in still water is ______.
Question 4
A motor-boat can travel at 10 km/hour in still water. It travelled 91 km downstream in a river and then returned to the same place, taking altogether 20 hours. Find the rate of flow of river.
Question 5
In a stream running at 2 km/h, a motorboat goes 10 km upstream and back again to the starting point in 55 min. Find the speed of the motorboat in still water
Question 6
A river 3 m deep and 40 m wide is flowing at the rate of 2 km/h. How much water (in litres) will fall into the sea in 1 minute?
Question 7
Speed of a boat is 10 km/h. Speed of boat in downstream is 2 times of speed of boat in upsteam. What is speed of current?
Question 8
Speeds of a boat along and against the current are 12 km/hr and 8 km/hr respectively. Then the speed of the current in km/hr?
Question 9
Speed of a boat along and against the current are 14 km/hr and 8 km/hr respectively. The speed of the current is
Question 10
A boat can go 8 km in still water in 1 hour but it takes 3 hours to travel the same distance upstream. Find the speed of the stream.
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Apr 20SSC & Railway