Practice test

Boat and stream - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

Question 1
The speed of a stream of water is 3 km/h and that of a man in still water is 6 km/h. Find the time taken by the man to swim 37 km downstream.
1. $4 \frac{3}{4} hours$
2. $4 \frac{1}{3} hours$
3. $4 \frac{1}{9} hours$
4. $1 \frac{3}{4} hours$
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Question 2
In still water the speed of a boat is 13 km/h, speed of stream is 4 km/h. What time will be taken to cover a distance of 68 km in the upstream?
1. 5 hours
2. 4 hours
3. 8 hours
4. $7 \frac{5}{9} hours$
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Question 3
The speed of a boat in still water is 30 km/h and the speed of current is 6 km/h. Find the distance travelled downstream and upstream in 5 minutes each way.
1. 3 km, 2 km
2. 3 km, 3 km
3. 2 km, 3 km
4. 2 km, 2 km
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Question 4
A boat moves in the upstream from city P to city Q and then it returns in the downstream from city Q to city P. If in still water the speed of the boat is 35 km/hr and the stream speed is 5 km/hr. Then what is the average speed of boat in total journey?
1. 36.38 km/h
2. 34.28 km/h
3. 35 km/h
4. 33.33 km/h
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Question 5
A motor boat whose speed is 11 km/h in still water covers a distance of 28 km upstream in 2 hrs 20 mins. Find the speed of the current.
1. 7 km/hrs
2. 2 km/hrs
3. 1 km/hrs
4. 11 km/hrs
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Question 6
In still water the speed of a boat is 20 km/hr. The boat travels 364 kilometers with the flow of water and then travels in the opposite direction to its beginning point. Total time taken by the boat is 40 hours. What is the speed of the current?
1. 10 km/hrs
2. 8 km/hrs
3. 4 km/hrs
4. 6 km/hrs
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Question 7
The speed of a boat 12 km/hr in still water. Speed of current is 8 km/hr. The boat is taken to a certain distance in the direction of the current and brought back to the same point. What is the average speed of the boat during the entire journey?
1. 7 km/hrs
2. 6 km/hrs
3. 8 km/hrs
4. $\frac{20}{3} km / hrs$
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Question 8
Speed of a boat in still water is 12 km/h and that of the current is 3 km/h. A man rows a boat upstream up to 135 km and returns downstream to the starting point. Find the total time taken for the entire journey in hours.
1. 24 hr
2. 48 hr
3. 36 hr
4. 30 hr
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Question 9
A person swims at a speed of 5 km/h in still water in a river whose speed is 1 km/h. It takes 75 minutes to swim from position A to position B. What is the distance between A and B?
1. 6 km
2. 5 km
3. 2.5 km
4. 3 km
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Question 10
The ratio of time taken by a boat to cover a certain distance upstream and downstream is 4 : 1. Find the ratio of speed of boat downstream and upstream.
1. 4 : 1
2. 3 : 5
3. 1 : 4
4. 5 : 3
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Question 11
A rower takes 16 hours to rowed 100 km upstream, while it takes only 10 hours to travel the same distance with the flow of the stream. What is the speed of the stream.
1. 6.625 km/hr
2. 1.875 km/hr
3. 6.25 km/hr
4. 8.125 km/hr
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Question 12
A sailor travels a distance of 24 km in the upstream and 36 km in the downstream and takes 6 hours each case. Find the speed of the stream.
1. 1 km/hr
2. 4 km/hr
3. 3 km/hr
4. 13 km/hr
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Question 13
Arjun takes 5 hours to swim 40 km in the downstream, whereas he only takes 2 hours to swim 24 km in the upstream. Find his speed of swimming in still water.
1. 12 km/hr
2. 10 km/hr
3. 9 km/hr
4. 15 km/hr
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Question 14
A sailor covers 2 km in the upstream in 1 hour and a distance of 1 km in the downstream in 10 minutes. Find the speed in still water.
1. 4 km/hr
2. 2.5 km/hr
3. 3 km/hr
4. 4.5 km/hr
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Question 15
It takes 12 hours for a boat to travel a certain distance in the downstream and it takes 24 hours to return. How long will the boat to cover the same distance in still water?
1. 15 hr
2. 10 hr
3. 18 hr
4. 16 hr
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Question 16
A sailor takes 12 hours to cover a distance of 75 km against the current, while he takes 7.5 hours to cover the same distance in the direction of the current What is the speed of the current?
1. 8.425 km/hr
2. 6.625 km/hr
3. 6.25 km/hr
4. 1.875 km/hr
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Question 17
A steamer goes downstream and covers the distance between two ports in 4 hours while it covers the same distance upstream in 5 hours. If the speed of steamer is 2 km/h, find the distance between ports.
1. 60 km
2. 75 km
3. 100 km
4. 80 km
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Question 18
Manyata rowed a certain distance downstream in 2 hours while it took 30 minutes more to row the same distance upstream. How much time will she take to make the two-way journey in still water?
1. 4:15:10 hr
2. 4:10 hr
3. 4:26:40 hr
4. 4:02:20 hr
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Question 19
A boat covers a certain distance downstream in 4 hours but takes 6 hours to return upstream to the starting point. If the speed of the stream be 2 km/h, find the speed of the boat in still water.
1. 5 km/hr
2. 8 km/hr
3. 7 km/hr
4. 10 km/hr
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Question 20
A boat moving in the upstream takes 8 hours 48 minutes to cover a distance, while it takes 4 hours to return to the starting point in the downstream. Find the ratio of the speed of the boat to the stream in still water.
1. 3 : 2
2. 8 : 3
3. 4 : 3
4. 2 : 1
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Questions and explanations

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

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Question 15

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Question 17

Question 18

Question 19

Question 20