Pipes and Cisterns mcqs test 01 1. A motor boat, whose speed Is 15 Km/h in stll water goes 30 Km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream is: 7 Km/h 5 Km/h 3 Km/h 6 Km/h 2. The speed of a boat in still water is 10 Km/h. If it can travel 30 Km downstream and comes back in a total of 4 hours 30 minutes. Ihe speed of the stream is: 10 7 5 8 3. If a boat goes 7 Km upstream in 42 minutes and the speed of the stream is 3 Km/h, then the speed of the boat in still water is: 19 Km/h 15 Km/h 13 Km/h 17 Km/h 4. A man rows to a place 48 km-distance and back in 14 hours. He finds that he can row 4 Km with the stream in the same time as 3 Km against the stream. The rate of the stream is 1 Km/h 3 Km/h 5 Km/h 4 Km/h 5. lf a man rows at the rate of 5 Km/h in still water and his rate against the current is 3.5 Km/h, then the man’s rate along the current is: 5 Km/h 8 Km/h 6.5 Km/h 7.5 Km/h 6. The speed of a boat in still water is 10 Km/h. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream is: 6 Km/h 3 Km/h 5 Km/h 7 Km/h 7. A man can row 9 1/3 Km/h in still water and finds that it takes him thrice as much time to row up than as to row down the.same distance in the river. The speed of the current is: 5 Km/h 3 Km/h 4 2/3 Km/h 2 Km/h 8. A boat can travel with a speed of 13 Km/h in still water. If the speed of the stream is 4 Km/h, find the time taken by the boat to go 68 Km downstream. 10 hours 7 hours 4 hours 6 hours 9. The speed of a boat in still water is 15 Km/h and the rate of current is 3 Km/h. The distance traveled downstream in 12 minutes is 4.5 Km 2 Km 5 Km 3.6 Km 10. A man can row upstream at 8 km/hr and downstream at 13 km/hr. The speed of the stream is: 1 km/hr 5 km/hr 2.5 km/hr km/hr 11. in one hour, a boat goes 11 Km along the stream and 5 Km against the stream. The speed of the boat in still water is: 10 11 8 13 12. A man can row at 15 Km/h in still water. If the veracity of current is one Km/h and it takes him one hours to row a place and come back, how far is the place? 5 Km 2.4 Km 3.5 Km 4.5 Km 13. A boat running downstream covers a distance of 16 Km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water? 3 Km/h 6 Km/h 10 Km/h 8 Km/h 14. A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 m/h, the speed of the stream is: 3 m/h 2 m/h 4 m/h 5 m/h 15. A man can row three-quarters of a Kilometer against the stream in11.25 minutes. The speed of the man in still water is: 5 3 7 2 16. A boat covers a certain distance downstream in one hour, while it comes back in 1.5 hours. If the speed of the stream be 3 Km/h, what is the speed of the boat in still water? 20 Km/h 15 Km/h 18 Km/h 17 Km/h 17. A man rows downstream 32 Km and 14 Km upstream. If he takes 6 hours to cover each distance, then the velocity of the current is? 1.5 Km/h 2.5 Km/r 1 Km/h 2 Km/h 18. Speed of a boat in standing water is 9 Km/h and the speed of the stream is 1.5 Km/h. A man rows to a place at a distance of 105 Km and comes back to the starting point. The total time taken by him is: 18 hours 20 hours 12 hours 24 hours 19. A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat and the stream is: 3:2 3:1 4:5 2:1 20. A man’s speed with the current is 15 Km/h and the speed of the current is 2.5 Km/h. The man’s Speed against the current is: 10 Km/h 7 Km/h 15 Km/h 12 Km/h Loading …