Boats and Streams
Boats and Streams: Boats and Streams Formula, Boats and Streams Questions, Boats and Streams Problems and Boats and Streams Tricks for solving exercises
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Online Aptitude Questions with Answers on Relative Velocity
Q16. A boat takes a total time of three hours to travel downstream from P and Q and upstream back from Q to P. What is the speed of the boat in still water?
I.The speed of the river current is 1 km per hour.
II.The distance between P and Q is 4 km.
- I alone sufficient while II alone not sufficient to answer
- II alone sufficient while I alone not sufficient to answer
- Either I or II alone sufficient to answer
- Both I and II are not sufficient to answer
- Both I and II are necessary to answer
Solution : Both I and II are necessary to answer
Q17. What is the speed of the boat in still water?
I.It takes 2 hours to cover the distance between A and B downstream.
II.It takes 4 hours to cover the distance between A and B upstream.
- I alone sufficient while II alone not sufficient to answer
- II alone sufficient while I alone not sufficient to answer
- Either I or II alone sufficient to answer
- Both I and II are not sufficient to answer
- Both I and II are necessary to answer
Solution : Both I and II are not sufficient to answer
Q18. What is the speed of the boat in still water?
I.The boat covers a distance of 48 kms in 6 hours while running upstream.
II.The boat covers the same distance in 4 hours while running downstream.
- I alone sufficient while II alone not sufficient to answer
- II alone sufficient while I alone not sufficient to answer
- Either I or II alone sufficient to answer
- Both I and II are not sufficient to answer
- Both I and II are necessary to answer
Solution : Both I and II are necessary to answer
Q19. Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.
What is the speed of the boat in still water?
I.The speed downstream is 12 kmph.
II.The speed upstream is 4 kmph.
III.In a to and fro journey between two points, the average speed of the boat was 6 kmph.
- I and II only
- All I, II and III
- III, and either I or II
- Any two of the three
- None of these
Solution : Any two of the three
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Q20. **A person can swim in still water at 4 km/h. If the speed of water 2 km/h, how many hours will the man take to swim back against the current for 6km?**
- 3
- 4
- 4(1/2)
- insufficient data
Solution : 3
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Solution :
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