Here we have given the Boat and Stream questions for bank PO Prelims exam preparation. The IBPS PO & SBI PO prelims exams will have a quantitative aptitude section for 35 marks. In this section, you can expect application sums for 10 to 15 marks. In application sums, there are various topics. You can expect 1 or 2 questions from the boat and stream topic. For your practice, we have added the Boat and Stream questions for bank PO Prelims exam practice.
Normally, in the IBPS PO & SBI PO prelims bank exams, many candidates will skip the application sums. But as the competition is huge, you have to prepare for all topics. So, practice more Boat and Stream questions for bank PO Prelims exam.
Tips to Solve Boat and Stream Questions
Here are some tips and instructions to prepare for the boat and stream questions in bank PO exams.
- RFirst, make thorough the boat and stream concept.
- Understand the terminologies such as downstream speed, upstream speed, speed of stream, etc.
- Know the correct formula for the concepts of downstream and upstream.
- Keep on practicing various types of problems.
- Automatically, you can pick up speed and technique to solve these questions after continuous practice.
So, candidates practice all the boat and stream questions for bank PO prelims exams.
Start Quiz
1) The boat can cover 120 km against the stream in 8 hours and the same boat cover 150 km along the stream in 6 hours. What is the ratio of the speed of boat in still water to speed of stream?
A.3:2
B.8:7
C.4:1
D.5:3
E.None of these
2) A boat can row 120 km downstream and comes back to the original position in 24 hours. If the ratio of the speed of stream to speed of the boat in still water is 2:3, then what is the speed of the boat in the still water?
A.15 kmph
B.18 kmph
C.21 kmph
D.24 kmph
E.None of these
3) A boat can travel 16 km downstream in 32 minutes. If the speed of the current is 1/4 of the speed of the boat in still water, what distance can the boat travel in 20 minutes?
A.12 km
B.16 km
C.18 km
D.8 km
E.10 km
4) A boat takes two hours more to travel upstream than travel the same distance in downstream. If the distance travelled by the boat is 120 km and the ratio of the speed of stream to boat in still water is 5: 1, then what is the speed of the boat in still water?
A.20 kmph
B.25 kmph
C.30 kmph
D.35 kmph
E.None of these
5) A boat took 12 hours less to travel a certain distance downstream than to travel the same distance upstream. If the speed of a boat in still water is 20 km/hr and speed of a stream is 12 km/hr, then find the total distance travelled by boat?
A.112 km
B.140 km
C.128 km
D.156 km
E.None of these
6) Ratio of the speed of the boat A and B in still water is 3:2 and the boat A travels along the stream at the speed of 40 kmph. If the difference between the speed of boat A and B in still water is 12 kmph, find the speed of the boat B travel against stream?
A.15 kmph
B.20 kmph
C.24 kmph
D.18 kmph
E.None of these
7) A boat takes 39 hours for travelling downstream from point A to point B and coming back to point C midway between A and B. If the speed of the stream is 18 km/hr and the speed of the boat in still water is 32 km/hr, then find the distance between A to B?
A.600 km
B.700 km
C.500 km
D.800 km
E.None of these
8) The boat travelled 80 km upstream in 16 hours and travelled 280 km downstream in 8 hours. If the boat and stream’s speed is increased by 5 kmph and 3 kmph respectively, then what is the time taken by the boat travelled 301 km in upstream and downstream?
A.40 hours
B.45 hours
C.50 hours
D.60 hours
E.Cannot be determined
9) Upstream speed of a boat is 4Km/h less than its downstream speed and speed of the boat in still water is 12 Km/h. Time taken by the boat to go 210 Km downstream is what percent of the time taken by the boat to go 120 Km upstream?
A.125%
B.110%
C.120%
D.105%
E.None of these
10) Speed of the boat is 16(2/3)% more than the speed of the car which moves 120 km at 5 hours. The boat covers a distance of 124 km downstream in 4 hrs. Find the distance covered by the boat upstream in 6 hrs.
A.120 km
B.160 km
C.130 km
D.150 km
E.None of these
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Answers :
1) Answer: C
Downstream speed = 150/6 = 25 kmph
Upstream speed = 120/8 = 15 kmph
Speed of the boat in still water = 1/2(downstream speed + upstream speed)
=> 1/2(25 + 15) = 20 kmph
Speed of stream=1/2 (downstream speed – upstream speed)
=> 1/2 (25 – 15)
=> 5 kmph
Required ratio = 20:5
= 4:1
2) Answer: B
Downstream speed = 2x + 3x = 5x
Upstream speed = 3x – 2x = x
120/5x + 120/x = 24
(120 + 600)/5x = 24
720 = 120x
x = 6
Speed of the boat in still water = 6 * 3 = 18 kmph
3) Answer: D
Let the speed of the boat in still water be x km/hr
Speed of the current= x/4
Downstream speed = x + x/4= 5x/4
Downstream speed in km/hr = 16*60/28= 30 km/hr
So,
5x/4= 30
x = 24 km/hr
Distance in 20 minutes= 24*20/60= 8 km
4) Answer: B
Distance = speed * time
120/4x – 120/6x = 2
(30 – 20)/x = 2
10 = 2x
= > x = 5
Speed of the boat in still water = 5 * 5 = 25 kmph
5) Answer: C
Let the total distance be x,
Speed of downstream = 20 + 12 = 32 km/hr
Speed of upstream = 20 – 12 = 8 km/hr
According to the question,
12 = (x/8) – (x/32)
12 = (4x – x)/32
(12 * 32) = 3x
x = (12 * 32) / 3 = 128 km
The total distance travelled by boat = 128 km
6) Answer: B
Speed of the boat A in still water = 3 * 12 = 36 kmph
Speed of the boat B in still water = 2 * 12 = 24 kmph
Downstream Speed of the boat A = 40 kmph
Stream speed = 40 – 36 = 4 kmph
Upstream speed of boat B = 24 – 4 = 20 kmph
7) Answer: B
Speed of downstream = 32 + 18 = 50 km/hr
Speed of upstream = 32 – 18 = 14 km/hr
Total time = 39 hours
If distance between A to B is x, then distance between B to C = x/2,
Time = Distance/Speed
x / 50 + (x/2) / 14 = 39
x / 50 + x / 28 = 39
78x / (50 * 28) = 39
x = (39 * 50 * 28) / 78 = 700 km
The distance between A to B = 700 km
8) Answer: C
Upstream speed = 80/16 = 5 kmph
Downstream speed = 280/8 = 35 kmph
Speed of the boat = (35 + 5)/2 = 20 kmph
Speed of stream = (35 – 5)/2 = 15 kmph
After increasing the boat = 20 + 5 = 25 kmph
Stream speed = 15 + 3 = 18 kmph
Required time = 301/(25 + 18) + 301/(25 – 18) = 7 + 43 = 50 hours
9) Answer: A
Let, speed of the boat in still water = a Km/h
And speed of the stream = b Km/h
(a + b) – (a – b) = 4
=> a + b – a + b = 4
=> 2b = 4
=> b = 4/2
=> b = 2 Km/h
a = 12 Km/h
Time taken by the boat to go 210 Km downstream = 210/(12 + 2)
= 210/14
= 15 hours
Time taken by the boat to go 120 Km upstream = 120/(12 – 2)
= 120/10
= 12 hours
Required percentage = 15/12 x 100 = 125%
10) Answer: D
Speed of the boat = a km/hr = (1+ 50/300) x speed of the car
= 7/6 x 120/5
= 28 km/hr
Speed of the stream = b km/hr
ATQ,
28 + b = 124/4 = 31
b = 3 km/h
28 – 3 = D/6
D = 25 x 6 = 150 km
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