Boats and Streams Aptitude MCQ Questions with Answers

Question. A boatman rows 1 km in 5 minutes, along the stream and 6 km in 1 hour against the stream. The speed of the stream is ?
a) 3 kmph
b) 6 kmph
c) 10 kmph
d) 12 kmph

Answer : A

Question. A boat sails 15 km of a river towards upstream in 5 hours. How long will it take to cover the same distance downstream, if the speed of current is one-fourth the speed of the boat in still water ?
a) 1.8 h
b) 3 h
c) 4 h
d) 5 h

Answer : B

Question. A boat goes 12 km downstream and comes back to the starting point in 3 hours. If the speed of the current is 3 km/hr, then the speed (in km/hr) of the boat in still water is ?
a) 12
b) 9
c) 8
d) 6

Answer : D

Question. A boat goes 6 km an hour in still water, but takes thrice as much time in going the same distance against the current. The speed of the current (in km/hour) is ?
a) 4
b) 5
c) 3
d) 2

Answer : A

Question. The speed of a motor-boat is thatof the current of water as 36 : 5. The boat goes along with the current in 5 hours 10 minutes. It will come back in ?
a) 5 hours 50 minutes
b) 6 hours
c) 6 hours 50 minutes
d) 12 hours 10 minutes

Answer : C

Question. Two boats A and B start towards each other from two places, 108 km apart. Speed of the boat A and B in still water are 12km/hr and 15km/hr respectively. If A proceeds down and B up the stream, they will meet after ?
a) 4.5 hours
b) 4 hours
c) 5.4 hours
d) 6 hours

Answer : B

Question. A man goes downstream with a boat to some destination and returns upstream to his original place in 5 hours. If the speed of the boat in still water and the stream are 10 km/hr and 4 km/hr respectively, the distance of the destination from the starting place is ?
a) 16 km
b) 18 km
c) 21 km
d) 25 km

Answer : C

Question. A man rows a boat 18 kilometres in 4 hours downstream and returns upstream in 12 hours. The speed of the stream (in km per hour) is ?
a) 1
b) 1.5
c) 2
d) 1.75

Answer : B

Question. A boat takes half time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the current is ?
a) 2 : 1
b) 1 : 2
c) 4 : 3
d) 3 : 1

Answer : D

Question. In one hour, a boat goes 12 km/hr along the stream and 6 km/hr against the stream. The speed of the boat in still water (in km/hr) is ?
a) 9
b) 8
c) 7
d) 7.5

Answer : A

Question. The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is ?
a) 8 kmph
b) 6 kmph
c) 7.5 kmph
d) 5.5 kmph

Answer : B

Question. A boat goes 4 km upstream and 4 km downstream in 1 hour. The same boat goes 5 km downstream and 3 km upstream in 55 minutes. What is the speed (in km/hr) of oat in still water ?
a) 6.5
b) 7.75
c) 9
d) 10.5

Answer : C

Question. A man rows 40 km upstream in 8 hours and a distance of 36 km downstream in 6 hours. Then speed of stream is ?
a) 0.5 km/hr
b) 1.5 km/hr
c) 1 km/hr
d) 3 km/hr

Answer : A

Question. A man can row 8 kmh in still water. If the river is running at 2 kmh, it takes 4 hrs more upstream than to go downstream for the same distance. Then the distance is given by ?
a) 54 kms
b) 32 kms
c) 45 kms
d) 60 kms

Answer : D

Question. A man swims downstream a distance of 15 km in 1 hour. If the speed of the current is 5 km/hour, the time taken by the man to swim the same distance upstream is ?
a) 1 hour 30 minutes
b) 45 minutes
c) 2 hours 30 minutes
d) 3 hours

Answer : D

Question. Speed of motorboat in still water is 45kmph. If the motorboat travels 80 km along the stream in 1 hour 20 minutes, then the time taken by it to cover the same distance against the stream will be ?
a) 3 hours
b) 1 hour 20 minutes
c) 2 hours 40 minutes
d) 2 hours 55 minutes

Answer : C

Question. A man can row 6 km/h in still water. If the speed of the current is 2 km/h, it takes 3 hours more in upstream than in the downstream for the same distance. The distance is ?
a) 30 km
b) 24 km
c) 20 km
d) 32 km

Answer : B

Question. A person can row 7.5 km an hour in still water and he finds that it takes him twice as long to row up as to row down the river. The speed of the stream is ?
a) 2 km/hr
b) 3 km/hr
c) 2.5 km/hr
d) 3.5 km/hr

Answer : C

Question. The speed of a boat in still water is 10 km/hr. It covers (upstream) a distance of 45 km in 6 hours. The speed (in km/hr) of the stream is ?
a) 2.5
b) 3
c) 3.5
d) 4

Answer : A

Question. A man can row upstream at 12 km/hr and downstream at 18 km/hr. The man’s rowing speed in still water is ?
a) 15 km/hr
b) 5 km/hr
c) 3 km/hr
d) 10 km/hr

Answer : A

Question. A boat travels 24 km upstream in 6 hours and 20 km downstream in 4 hours. Then the speed of boat in still water and the speed of water current are respectively ?
a) 4 kmph and 3 kmph
b) 4.5 kmph and 0.5 kmph
c) 4 kmph and 2 kmph
d) 5 kmph and 2 kmph

Answer : B

Question. A boatman can row 3 km against the stream in 20 minutes and return in 18 minutes. Find the rate of current ?
a) 1/3 kmph
b) 2/3 kmph
c) 1/4 kmph
d) 1/2 kmph

Answer : D

Question. A boy can swim in still water at a speed of 10 km/hr. If the speed of the current would have been 5 kmph, then the boy could swim 60 km ?
a) upstream in 4 hour
b) downstream in 12 hours
c) upstream in 6 hours
d) downstream in 4 hours

Answer : D

Question. A man can swim at the rate of 4 km/hr in still water. If the speed of the water is 2 km/hr, then the time taken by him to swim 10 km upstream is ?
a) 2.5 hrs
b) 3.5 hrs
c) 5 hrs
d) 4 hrs

Answer : C

Question. A man can row at a speed of 4.5 km/hr in still water. If he takes 2 times as long to row a distance upstream as to row the same distance downstream, then, the speed of stream (in km/hr) is ?
a) 1
b) 1.5
c) 2
d) 2.5

Answer : B

Question. The speed of a boat along the stream is 12 km/h and against the stream is 8 km/h. The time taken by the boat to sail 24 km in still water is ?
a) 2 hours
b) 3 hours
c) 2.4 hours
d) 1.2 hours

Answer : C

Question. A man can row at 5 kmph. In still water. If the velocity of current is 1 kmph. and it takes him 1 hour to row to a place and come back, how far is the place ?
a) 2.5 km
b) 3 km
c) 2.4 km
d) 3.6 km

Answer : C

Question. A man can swim 3 km/hr. in still water. If the velocity of the stream is 2 km/hr., the time taken by him to swim to a place 10 km upstream and back is ?
a) 9 hr 40 min
b) 10 hr
c) 12 hr.
d) 8 hr 40 min

Answer : C

Question. A man rows his boat 60 km downstream and 30 km upstream taking 3 hrs each time. Find the speed of the stream ?
a) 5 kmph
b) 10 kmph
c) 15 kmph
d) 45 kmph

Answer : A

Question. A motor boat takes 12 hours to go downstream and it takes 24 hours to return the same distance. what is the time taken by boat in still water ?
a) 15 h
b) 16 h
c) 8 h
d) 20 h

Answer : B

Question. A person can row a distance of one km upstream in ten minutes and downstream in four minutes. What is the speed of the stream ?
a) 4.5 km/h
b) 4 km/h
c) 9 km/h
d) 5.6 km/h

Answer : A

Question. A man can row upstream at 16 km/hr and downstream at 24 km/hr. Find the speed of the current ?
a) 4 kmph
b) 6 kmph
c) 5 kmph
d) 3 kmph

Answer : A

Question. If the speed of a boat in still water is 20 km/hr and the speed of the current is 5 km/hr, then the time taken by the boat to travel 100 km with the current is ?
a) 2 hours
b) 3 hours
c) 4 hours
d) 7 hours

Answer : C

Question. A boat goes 75 km upstream in 3 hours and 60 km downstream in 1.5 hours. The speed of the boat in still water is ?
a) 32.5 kmph
b) 30 kmph
c) 65 kmph
d) 60 kmph

Answer : A

Question. Speed of a boat along and against the current are 12 km/hr and 8 km/hr respectively. Then the speed of the current in km/hr is ?
a) 5
b) 4
c) 3
d) 2

Answer : D

Question. The speed of a boat in still water is 6 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 22.5 km and comes back to the starting point. The total time taken by him is ?
a) 10 hours
b) 4 hours 10 minutes
c) 6 hours 10 minutes
d) 8 hours

Answer : D

Question. A swimmer swims from a point A against a current for 5 minutes and then swims backwards in favour of the current for next 5 minutes and comes to the point B. If AB is 100 metres, the speed of the current (in km per hour) is ?
a) 0.4
b) 0.2
c) 1
d) 0.6

Answer : D

Question. A boat covers 24 km upstream and 36 km downstream in 6 hours, while it covers 36 km upstream and 24 km downstream in 6.5 hours. The speed of the current is ?
a) 1 km/hr
b) 2 km/hr
c) 1.5 km/hr
d) 2.5 km/hr

Answer : B

Question. A motor boat covers a certain distance downstream in a river in 3 hours. It covers the same distance upstream in 3 hours and a half. If the speed of water is 1.5 km/h, then the speed of the boat in still water is ?
a) 17 km/h
b) 19.5 km/h
c) 17.5 km/h
d)19 km/h

Answer : B

Question. Speed of a boat is 5 km per hour in still water and the speed of the stream is 3 km per hour. If the boat takes 3 hours to go to a place and come back, the distance of the place is ?
a) 3.75 km
b) 4 km
c) 4.8 km
d) 4.25 km

Answer : C

Question. A sailor goes 12 km downstream in 48 minutes and returns in 1 hour 20 minutes. The speed of the sailor in still water is ?
a) 12 km/hr
b) 12.5 km/ hr
c) 13 km/hr
d) 15 km/hr

Answer : A

Question. The current of a stream runs at the rate of 4 km an hour. A boat goes 6 km and comes back to the starting point in 2 hours. The speed of the boat in still water is ?
a) 6 km/hour
b) 8 km/hour
c) 7.5 km/hour
d) 6•8 km/hour

Answer : B

Question. A boat goes 20 km downstream in one hour and the same distance upstream in two hours. The speed of the boat in still water is ?
a) 15 km/hr
b) 10 km/hr
c) 5 km/hr.
d) 7.5 km/hr

Answer : A

Question. The speed of the current is 5 km/hour. A motorboat goes 10 km upstream and back again to the starting point in 50 minutes. The speed (in km/hour) of the motorboat in still water is ?
a) 20
b) 26
c) 25
d) 28

Answer : C

Question. A boat running downstream covers a distance of 20 km in 2 hrs while it covers the same distance upstream in 5 hrs. Then speed of the boat in still water is ?
a) 7 km/hr
b) 8 km/hr
c) 9 km/hr
d) 10 km/hr

Answer : A

Question. Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is ?
a) 11 km/hr
b) 6 km/hr
c) 5.5 km/hr
d) 3 km/hr

Answer : D

Question. A boat covers 12 km upstream and 18 km downstream in 3 hours, while it covers 36 km upstream and 24 km downstream in 6.5 hours. What is the speed of the current ?
a) 1.5 km/hr
b) 1 km/hr
c) 2 km/hr
d) 2.5 km/hr

Answer : C

Question. A man can row 30 km downstream and return in a total of 8 hours. If the speed of the boat in still water is four times the speed of the current, then the speed of the current is ?
a) 1 km/hour
b) 2 km/hour
c) 4 km/hour
d) 3 km/hour

Answer : B

Question. A boat goes at 14 kmph along the stream and 8 kmph against the stream. The speed of the boat (in kmph) in still water is ?
a) 12 kmph
b) 11 kmph
c) 10 kmph
d) 8 kmph

Answer : B

Question. In a fixed time, a boy swims double the distance along the current that he swims against the current. If the speed of the current is 3 km/hr, the speed of the boy in still water is ?
a) 6 km/hr
b) 9 km/hr
c) 10 km/hr
d) 12 km/hr

Answer : B

Question. A motorboat in still water travels at a speed of 36 kmph. It goes 56 km upstream in 1 hour 45 minutes. The time taken by it to cover the same distance down the stream will be ?
a) 2 hours 25 minutes
b) 3 hours
c) 1 hour 24 minutes
d) 2 hours 21 minutes

Answer : C