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Arithmetic Aptitude :: Boats and Streams

  1. A man can row at 5 km/hr in still water, if the river is running at 1 km/hr it takes him 75 minutes to row to a place and back. How far is the place?
  2. A.
    2.5km
    B.
    3km
    C.
    4 km
    D.
    5 km

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  3. In a river, a man takes 3 hours in rowing 3 km upstream or 15 km downstream. What is the speed of the current?
  4. A.
    2km/hr
    B.
    4km/hr
    C.
    6km/hr
    D.
    9km/hr

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  5. A boat running upstream takes 8 hours 48 min to cover a certain distance while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and the speed of water current respectively?
  6. A.
    2 : 1
    B.
    3 : 1
    C.
    8 : 3
    D.
    Cannot be determined

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  7. A boat goes 6 km in an hour in still water. It takes thrice as much time in covering the same distance against the current. Speed of the current is?
  8. A.
    2 km/hr
    B.
    3km/hr
    C.
    4km/hr
    D.
    5 km/hr

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  9. A man can row three-quarters of a kilometer against the stream in 11 ¼ minutes and return in 7 ½ minutes. The speed of the man in still water is?
  10. A.
    2km/hr
    B.
    3km/hr
    C.
    4 km/hr
    D.
    5 km/hr

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  11. A man can row 7 ½ kms on hour in still water and he finds that it takes hi twice as long to row down the river. The rate of stream is
  12. A.
    2.4km/hr
    B.
    2.5 km/hr
    C.
    3.4km/hr
    D.
    3.5km/hr

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  13. A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will he take to go 5km in stationery water?
  14. A.
    40 Minutes
    B.
    1 Hour
    C.
    1 hr 15 Min
    D.
    1 Hr 30 Min

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  15. A boat takes half time in moving a certain distance downstream than upstream. What is the ratio between the rate in still water and rate of current?
  16. A.
    1 : 2
    B.
    3 : 1
    C.
    2 : 1
    D.
    1 : 3

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  17. The speed of a boat in still water is 2km/hr. If its speed upstream be 1km/hr then speed of the stream is
  18. A.
    1.5km/hr
    B.
    3km/hr
    C.
    1km/hr
    D.
    none

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  19. A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9km/hr and the speed of the current is 3km/hr, the distance A and B is:
  20. A.
    4km
    B.
    6 km
    C.
    8 km
    D.
    12 km

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