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Aptitude Boats and Streams Test Paper 1


1) The speed of a boat in still water is 5km/hr. If the speed of the boat against the stream is 3 km/hr, what is the speed of the stream?

  1. 1.5 km/hr
  2. 2 km/hr
  3. 2.5 km/hr
  4. 1 km/hr

The correct answer is B

Answer with explanation:

Let the speed of stream = X km/hr

Speed of boat = 5 km/hr

Speed upstream = 3km/hr

Apply formula: Speed upstream = speed of boat - speed of stream

∴ 3 = 5 - X

X = 5 - 3 = 2 km/hr


2) A man rows downstream at 20 km/hr and rows upstream at 15 km/hr. At what speed he can row in still water?

  1. 17.5 km/hr
  2. 18 km/hr
  3. 20.5 km/hr
  4. 22 km/hr

The correct answer is A

Apply formula: Speed in still water = Apti Boat and streams 9(speed downstream + speed upstream)

Speed downstream = 20 km/hr

Speed upstream = 15 km/hr

∴ Required speed = Apti Boat and streams 10 (20 + 15) km/hr

= Apti Boat and streams 11 ∗ 35 = 17.5 km/hr


3) A man swims 12 km downstream and 10 km upstream. If he takes 2 hours each time, what is the speed of the stream?

  1. 1 km/hr
  2. 0.5 km/hr
  3. 1.5 km/hr
  4. 0.7 km/hr

The correct answer is B

Answer with explanation:

Speed downstream = Apti Boat and streams 12 = Apti Boat and streams 13 = 6 km/hr

Speed downstream = Apti Boat and streams 14 = Apti Boat and streams 15 = 5 km/hr

Apply formula: Speed of stream = Apti Boat and streams 16 (speed downstream - speed upstream)

X = 6 km/hr

Y= 5 km/hr

∴ Required speed = Apti Boat and streams 17 (6 -5) km/hr

= Apti Boat and streams 18 ∗ 1= 0.5 km/hr


4) A boat covers 800 meters in 600 seconds against the stream and returns downstream in 5 minutes. What is the speed of the boat in still water?

  1. 1 m/s
  2. 1.5 m/s
  3. 2 m/s
  4. 2.5 m/s

The correct answer is C

Answer with explanation:

Speed upstream = Apti Boat and streams 19 = Apti Boat and streams 20 = Apti Boat and streams 21 m/s

Speed downstream = Apti Boat and streams 22 = Apti Boat and streams 23 = Apti Boat and streams 24 m/s

Apply formula: Speed in still water = Apti Boat and streams 25 (speed downstream + speed upstream)

X = Apti Boat and streams 26 m/s

Y = Apti Boat and streams 27 m/s

∴ Speed in still water = Apti Boat and streams 28 Boats and streams Sign Apti Boat and streams 29 + Apti Boat and streams 30Boat and streams Sign 2

= Apti Boat and streams 31 ∗ 4 = 2 m/s


5) A man can row a boat at a speed of 20 km/hr in still water. If the speed of the stream is 5 km/hr, in what time he can row a distance of 75 km downstream?

  1. 1.5 hours
  2. 2 hours
  3. 2.5 hours
  4. 3 hours

The correct answer is D

Answer with explanation:

Speed of boat = 20 km/hr

Speed of stream = 5 km/hr

∴ Speed downstream = 20 + 5= 25 km/hr

Required Time = Apti Boat and streams 32 = Apti Boat and streams 33 = 3 hours


Aptitude Boats and Streams Test Paper 2
Aptitude Boats and Streams Test Paper 3
Aptitude Boats and Streams Test Paper 4
Boats and Streams Concepts





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