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Question 1
A boat moves downstream at the rate of 1 km in 7
minutes and upstream at the rate of 5 km an hour. What is the speed of the boat in the still water?
minutes and upstream at the rate of 5 km an hour. What is the speed of the boat in the still water? Question 2
Ram goes to his office by scooter at a speed of 30 km/h and reaches 6 minutes earlier. If he goes at a speed of 24 km/h, he reaches 5 minutes late. The distance of his office is
Question 3
A man can swim 3 km/hr. in still water. If the velocity of the stream is 2 km/hr., the time taken by him to swim to a place 10 km upstream and back is :
Question 4
A boat goes 24 km upstream and 28 km downstream in 6 hours. It goes 30 km upstream and 21 km downstream in 6 hours and 30 minutes. The speed of the boat in still water is
Question 5
A man rows 40 km upstream in 8 hours and a distance of 36 km downstream in 6 hours. Then speed of stream is
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
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 8
A swimmer covers a distance of 20km against the current and 30 km in the direction of current. If in each case he takes 5 hours, what is the speed of the current?
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Sep 24SSC & Railway
