Boats and Streams MCQ Questions & Answers

Boats and Streams MCQs : This section focuses on the "Boats and Streams". These Multiple Choice Questions (MCQs) should be practiced to improve the Boats and Streams skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.

A. 2 hours

B. 3 hours

C. 4 hours

D. 5 hours

Question 2

A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:

A. 8.5 km/hr

B. 9 km/hr

C. 10 km/hr

D. 12.5 km/hr

Question 3

A boat running upstream takes 8 hours 48 minutes 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 speed of the water current respectively?

A. 2 : 1

B. 3 : 2

C. 8 : 3

D. Cannot be determined

Question 4

A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:

A. 4

B. 5

C. 6

D. 10

Question 5

In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water (in km/hr) is:

A. 3 km/hr

B. 5 km/hr

C. 8 km/hr

D. 9 km/hr

Question 6

A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water?

A. 4 km/hr

B. 6 km/hr

C. 8 km/hr

D. Data inadequate

Question 7

The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:

A. 1.2 km

B. 1.8 km

C. 2.4 km

D. 3.6 km

Question 8

A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is:

A. 2 mph

B. 2.5 mph

C. 3 mph

D. 4 mph

Question 9

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. 2.4 km

B. 2.5 km

C. 3 km

D. 3.6 km

Question 10

A boat covers a certain distance downstream in 1 hour, while it comes back in 1 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?

A. 12 kmph

B. 13 kmph

C. 14 kmph

D. 15 kmph

Question 11

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 it take to go 5 km in stationary water?

A. 40 minutes

B. 1 hour

C. 1 hr 15 min

D. 1 hr 30 min

Question 12

A man can row three-quarters of a kilometre against the stream in 11 1/4 minutes and down the stream in 7 1/2 minutes. The speed (in km/hr) of the man in still water is:

A. 2

B. 3

C. 4

D. 5

Question 13

Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is:

A. 16 hours

B. 18 hours

C. 20 hours

D. 24 hours

Question 14

A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:

A. 2 : 1

B. 3 : 1

C. 3 : 2

D. 4 : 3

Question 15

A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:

A. 1 km/hr

B. 1.5 km/hr

C. 2 km/hr

D. 2.5 km/hr

Question 16

A boat at anchor is rocked by waves whose consecutive crests are 125 m apart. The velocity of the wave of the moving crests is 25 m/s. What is the frequency of the rocking of the boat?

A. 0.20 Hz

B. 625 Hz

C. 250 Hz

D. 100 Hz

Question 17

A boat can move 5 km/hr in still water. If the river is running at 1 km/hr, it takes it 75 min to move to a place and back. How far is the place?

A. 3 kms

B. 5 kms

C. 6 kms

D. 4 kms

Question 18

A boat covers 63 km upstream in 9 hours and covers the same distance downstream in 7 hours . What is the speed (in km/ hr) of the boat in still water?

A. 8.7

B. 8.5

C. 7

D. 8

Question 19

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

Question 20

A boat goes a certain distance at 40 km/hr and comes back the same distance at 24 km/hr. What is the average speed (in km/hr) for the total journey?

A. 32

B. 28

C. 34

D. 30

Question 21

A boat moves down stream at the rate of 8km/hr. and upstream at 4Km/hr. The speed of the boat in still waters is:

A. 4.5 km/hr.

B. 5 km/hr.

C. 6 km/hr.

D. 6.4 km/hr.

Question 22

A boat running upstream takes 8 hours 48 minutes 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 speed of the water current respectively?

A. 7:4

B. 11:4

C. 4:7

D. 8:3

Question 23

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. 1.8h

B. 3h

C. 4h

D. 5h

Question 24

A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point C which is at midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B ?

A. 180 km

B. 160 km

C. 140 km

D. 120 km

Question 25

A boat travels 24 km upstream in 6 h and 20 km downstream in 4 h. then, the speed of a boat in still water and the speed of current are respectively

A. 4.5 km/h and 3 km/h

B. 4.5 km/h and 0.5 km/h

C. 4 km/h and 2 km/h 5 km/h and 2 km/h

D. 5 km/h and 2 km/h

Question 26

A boat travels 72 km downstream in 8 hours and 84 km upstream in 12 hours. Find the speed of the boat in still water and the speed of the water current ?

A. 9 and 3 kmph

B. 6 and 7 kmph

C. 8 and 1 kmph

D. 7 and 2 kmph

Question 27

A boat while travelling upstream covers a distance of 29 km at the speed of 6 km/h, whereas while travelling downstream it covers the same distance at a speed of 12 km/h. What is the speed of the boat in still water?

A. 6 kmph

B. 8 kmph

C. 9 kmph

D. 11 kmph

Question 28

A boat whose speed in still water is 9 kmph, goes 12 km downstream and comes back in 3 hrs. Find the speed of the stream?

A. 1 kmph

B. 3 kmph

C. 5 kmph

D. 4 kmph

Question 29

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

Question 30

A boatman can row 96 km downstream in 8 hr. If the speed of the current is 4 km/hr, then find in what time he will be able to cover 8 km upstream ?

A. 1.5 hrs

B. 1 hrs

C. 2.5 hrs

D. 2 hrs

Question 31

A boy can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is ?

A. 1.8 kmph

B. 2 kmph

C. 2.2 kmph

D. 1.5 kmph

Question 32

A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and back. What is the total distance traveled by the man ?

A. 4.58 kms

B. 6.35 kms

C. 5.76 kms

D. 5.24 kms

Question 33

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

Question 34

A man can row against the current three fourth of a kilometer in 15 min and returns same distance in 10 min, then ratio of his speed to that of current?

A. 5:1

B. 3:1

C. 4:1

D. 2:1

Question 35

A man can row his boat at a speed of speed of 4 kmph and he finds that the time taken rowing upstream is double to that taken downstream. Find the speed of the stream (in kmph).

A. 1.5

B. 1.3

C. 2

D. 1

Question 36

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

Question 37

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

Question 38

A man goes down stream 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 strean are 10km/hr and 14km/hr respectively, the distance of the destination from the string place is

A. 16 km

B. 18 km

C. 21 km

D. 25 km

Question 39

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

Question 40

A man went downstream for 28 km in a motor boat and immediately returned. It took the man twice as long to make the return trip. If the speed of the river flow were twice as high, the trip downstream and back would take 672 minutes. Find the speed of the boat in still water and the speed of the river flow.

A. 12 km/hr, 3 km/hr

B. 9 km/hr, 3 km/hr

C. 8 km/hr, 2 km/hr

D. 9 km/hr, 6 km/hr

Question 41

A man, rowing a boat, covers a distance of 16 km in two hours downstream. He covers half the distance in same amount of time when rowing upstream. Calculate the speed of the stream.

A. 4 kmph

B. 2 kmph

C. 3 kmph

D. 1 kmph

Question 42

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

Question 43

A motorboat can go 10 miles downstream on a river in 20 min. It takes 30 min for this boat to go back at the same 10 miles. Find the speed of the current ?

A. 8 m/h

B. 5 m/h

C. 7 m/h

D. 6 m/h

Question 44

A motorboat goes 8 km an hour in still water, but takes thrice as much time in going the same distance against the current than going with the current. Then find the speed of the current?

A. 4 kmph

B. 6 kmph

C. 3 kmph

D. 2 kmph

Question 45

A motorboat running upstream takes 8 hours 48 minutes 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 motorboat and speed of the water current respectively?

A. 3:7

B. 7:9

C. 5:4

D. 8:3

Question 46

A motorboat takes half time to cover a certain distance downstream than upstream. What is the ratio between rate of current and rate of boat in still water?

A. 1 : 3

B. 3 : 2

C. 2 : 3

D. 3 : 1

Question 47

A person can row 8 1/2 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 ?

A. 1.78 kmph

B. 2.35 kmph

C. 2.83 kmph

D. 3.15 kmph

Question 48

A steamer moves with a speed of 4.5 km/h in still water to a certain upstream point and comes back to the starting point in a river which flows at 1.5 km/h. The average speed of steamer for the total journey is

A. 12 km/h

B. 10 km/h

C. 6 km/h

D. 4 km/h

Question 49

Amith can row a boat d km upstream and the same distance downstream in 5 hours 15 minutes. Also, he can row the boat 2d km upstream in 7 hours. How long will it take to row the same distance 2d km downstream for Amith ?

A. 4 hrs 10 min

B. 3 hrs 15 min

C. 3 hrs 30 min

D. 4 hrs 1 min

Question 50

Ashok can row upstream at 8 kmph and downstream at 12kmph.What is the speed of the stream ?

A. 6 km/hr

B. 3 km/hr

C. 2 km/hr

D. 4.5 km/hr

Question 51

Choose the most appropriate answer: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 9 Km/h and the speed of the current is 3 Km/h, the distance between A and B is

A. 9 km

B. 10 km

C. 11 km

D. 12 km

Question 52

Equal distance is covered by a boat in upstream and in downstream in total 5 hours. Sum of speed of a boat in upstream and downstream is 40 km/hr. Speed of boat in still water is 600%more than the speed of stream. Find theapproximate distance covered by boat in downstream (in km).

A. 45

B. 50

C. 55

D. 60

Question 53

Find the speed of stream if a boat covers 36 km in downstream in 6 hours which is 3 hours less in covering the same distance in upstream?

A. 1.5 kmph

B. 1 kmph

C. 0.75 kmph

D. 0.5 kmph

Question 54

If a boat goes a certain distance at 30 km/h and comes back the same distance at 20 km/hr, what is the average speed (in km/hr) for the total journey?

A. 25

B. 24.5

C. 24

D. 25.5

Question 55

If a boat goes a certain distance at 30 km/hr and comes back the same distance at 60 km/hr. What is the average speed (in km/hr) for the total journey?

A. 45

B. 50

C. 40

D. 35

Question 56

If a boat goes upstream at a speed of 18 km/hr and comes back the same distance at 30 km/hr. What is the average speed (in km/hr) for the total journey?

A. 22.5

B. 24

C. 20.5

D. 25

Question 57

If a boat goes upstream at a speed of 24 km/hr and comes back the same distance at 40 km/hr. What is the average speed (in km/hr) for the total journey.

A. 32

B. 30

C. 31

D. 33

Question 58

If an anchored boat is rocked by waves whose crests are 80 m apart and whose velocity is 20 m/s, then the time required by the crests to reach the boat is ___.

A. 0.5 s

B. 5 s

C. 0.2 s

D. 4 s

Question 59

If sum of upstream and downstream speed of a boat is 82 kmph, and the boat travels 105 km. upstream in 3 hr, Find the time taken by boat to cover 126 km downstream.

A. 2.8 hrs

B. 2.7 hrs

C. 2.6 hrs

D. 2.5 hrs

Question 60

If the boat goes 7 kms upstream in 42 min and speed of the stream is 3 kmph, then the speed of the boat in still water ?

A. 14 kmph

B. 13 kmph

C. 12 kmph

D. 11 kmph

Question 61

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 hrs

B. 3 hrs

C. 4 hrs

D. 7 hrs

Question 62

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

Question 63

Mahesh rows to the place 80 km away and back in 20 hours. He finds that he can row 8 km downstream in the same time as 4 km upstream. The speed of the boat in stillwater is

A. 9 kmph

B. 7 kmph

C. 2 kmph

D. 5 kmph

Question 64

Rajesh rows in still water with a speed of 4.5 kmph to go to a certain place and comes back. Find his average speed for the whole journey, if the river is flowing with a speed of 1.5 kmph?

A. 2 kmph

B. 4 kmph

C. 6 kmph

D. 8 kmph

Question 65

Ramu can row 9 kmph in still water. It takes him twice as long to row up as to row down. Find the rate of stream.

A. 16 kmph

B. 8 kmph

C. 3 kmph

D. 9 kmph

Question 66

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 kms/hr

B. 6 kms/hr

C. 5.5 kms/hr

D. 3 kms/hr

Question 67

Speeds of a boat along the current and against the current are 14 km/hr and 7 km/hr respectively. What is the speed of boat (in km/hr) in still water?

A. 3.5

B. 7.5

C. 10.5

D. 9.5

Question 68

Sravan drove from home to a neighboring town at the speed of 50 km/h and on his returning journey, he drove at the speed of 45 km/h and also took an hour longer to reach home. What distance did he cover?

A. 350 kms

B. 450 kms

C. 900 kms

D. 700 kms

Question 69

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

Question 70

The ratio of the speed of a boat downstream and speed of the stream is 9:1. If the speed of the current is 3 km per hr, find the distance travelled by the boat upstream in 5 hours.

A. 100 km

B. 98 km

C. 109 km

D. 105 km

Question 71

The upstream speed of the boat is 40 kmph and the speed of the boat in still water is 55 kmph. What is the downstream speed of the boat?

A. 75 kmph

B. 70 kmph

C. 60 kmph

D. 65 kmph

Question 72

To go a distance of 40 km upstream a rower takes 8 hours while it takes her only 5 hours to row the same distance downstream. What was the rower's speed in still water?

A. 4.5 kmph

B. 4 kmph

C. 6.5 kmph

D. 1.5 kmph