# 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.

1.  I alone sufficient while II alone not sufficient to answer
2.  II alone sufficient while I alone not sufficient to answer
3.  Either I or II alone sufficient to answer
4.  Both I and II are not sufficient to answer
5.  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.

1.  I alone sufficient while II alone not sufficient to answer
2.  II alone sufficient while I alone not sufficient to answer
3.  Either I or II alone sufficient to answer
4.  Both I and II are not sufficient to answer
5.  Both I and II are necessary to answer

Solution : Both I and II are not sufficient to answer

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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.

1.  I alone sufficient while II alone not sufficient to answer
2.  II alone sufficient while I alone not sufficient to answer
3.  Either I or II alone sufficient to answer
4.  Both I and II are not sufficient to answer
5.  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.

1.  I and II only
2.  All I, II and III
3.  III, and either I or II
4.  Any two of the three
5.  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?**

1.  3
2.  4
3.  4(1/2)
4.  insufficient data

Solution : 3
Q{{(\$index+1)+((page-1)*LIMITPERPAGE)}}.

1.

Solution :

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