Boats and Streams Practice Question and Answer

Q:

A Man rows to a place 63 km far and comes back in 16 hours. He finds that he can row 18 km with the flow in the same time taken to row 14 km against the flow. What is the speed of the stream?

604 0

  • 1
    1 km/hr
    Correct
    Wrong
  • 2
    2 km/hr
    Correct
    Wrong
  • 3
    2.5 km/hr
    Correct
    Wrong
  • 4
    4 km/hr
    Correct
    Wrong
  • 5
    5 km/hr
    Correct
    Wrong
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Answer : 1. "1 km/hr"

Q:

A boat starts travelling from point P, travels to point Q then returns to point P. The boat takes 12 hours to complete the journey. The speed of the stream is 5 km/hour and the speed of the boat in still water is 10 km/hour. What is the distance between P and Q?

543 0

  • 1
    45
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    55
    Correct
    Wrong
  • 5
    60
    Correct
    Wrong
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Answer : 1. "45"

Q:

A boat covers 35 km downstream in 2 h and covers the same distance upstream in 7 h. Find the speed (in km/h) of the boat in still water.  

976 0

  • 1
    11.25
    Correct
    Wrong
  • 2
    28.75
    Correct
    Wrong
  • 3
    18.25
    Correct
    Wrong
  • 4
    10.55
    Correct
    Wrong
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Answer : 1. "11.25 "

Q:

A man can row 10 km/h in still water. When the river is running at a speed of 4.5 km/h, then it takes him 2 h to row to a place and comes back to the initial point . How far is the place (in km) (rounded off to two decimal places)?

768 0

  • 1
    5.50
    Correct
    Wrong
  • 2
    8.98
    Correct
    Wrong
  • 3
    7.98
    Correct
    Wrong
  • 4
    6.25
    Correct
    Wrong
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Answer : 3. "7.98 "

Q:

A boat moves 25km upstream and 39km downstream in 8 hours. It travels 35km upstream and 52km downstream in 11 hours. What is the speed of the stream if it travels at a uniform speed?

584 0

  • 1
    5 km/h
    Correct
    Wrong
  • 2
    4 km/h
    Correct
    Wrong
  • 3
    6 km/h
    Correct
    Wrong
  • 4
    3 km/h
    Correct
    Wrong
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Answer : 2. "4 km/h "

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Answer : 3. "53.33 km/h"

Q:

A man can row downstream at a speed of 15 km/h and upstream at 11 km/h. Find his speed in still water and the speed of the current, respectively. [Give both your answers in km/h]

668 0

  • 1
    13 ; 5
    Correct
    Wrong
  • 2
    11 ; 4
    Correct
    Wrong
  • 3
    13 ; 2
    Correct
    Wrong
  • 4
    13 ; 6
    Correct
    Wrong
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Answer : 3. "13 ; 2 "

Q:

The speed of a boat in still water is 10 km/h. The speed of the stream is 2 km/h. What is the total distance that the boat will travel if it is rowed for 4 hours upstream and 3 hours downstream?

501 0

  • 1
    70 km
    Correct
    Wrong
  • 2
    72 km
    Correct
    Wrong
  • 3
    64 km
    Correct
    Wrong
  • 4
    68 km
    Correct
    Wrong
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Answer : 4. "68 km"

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