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Arithmetic Aptitude :: Boats and Streams

  1. The velocity of a boat in still water is 9 km/hr, and the speed of the stream is 2.5 km/hr. How much time will the boat take to go 9.1 km against the stream?

  2. A.
    1 hr. 20min
    B.
    2hr. 40min
    C.
    1hr. 24min
    D.
    2hr. 48min

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  3. A man covers a distance of 36 km in 6 hours downstream and a distance of 40 km upstream in 8 hours. What is his speed in still water?

  4. A.
    5.5km/hr
    B.
    8km/hr
    C.
    7km/hr
    D.
    None of these

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  5. A boat travels upstream from Q to P and downstream from P to Q in 3 hours. If the distance between P to Q is 4km and the speed of the stream is 1kmph, then what is the velocity of the boat in still water?

  6. A.
    3kmph
    B.
    4kmph
    C.
    5kmph
    D.
    7.2kmph

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  7. The speed of the stream is 5km/hr. A boat goes 10 km upstream and returns back to the starting point in 50 minutes. Find the velocity of the boat in still water.

  8. A.
    20km/hr
    B.
    25km/hr
    C.
    30km/hr
    D.
    50km/hr

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  9. A boat travels from A to B along the stream and from B to A against the stream in 3 hours. If the velocity of the boat in still water is 4 km/hr, what is the distance between A and B?

  10. A.
    8 km
    B.
    10 km
    C.
    12 km
    D.
    Data insufficient

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