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Top 10 Questions (“Boats and Streams” – Time and Distance) for SSC CGL and CHSL

Top 10 Questions Arithmetic Ability for SSC CGL and CHSL




Top 10 Questions (“Boats and Streams” – Time and Distance) for SSC CGL and CHSL



Answers are in bold


1)
A man takes 5 hrs to go to the destination in downstream and also come back in upstream by boat. If the speed of boat in still water is 10 km/hr and speed of stream is 4 km/hr, then what will be the distance of destination from starting point?
A) 16 km
B) 18 km
C) 21 km
D) 25 km

2)
The speed of boat in still water is 7.5 km/hr. The time taken in upstream flow is twice of the time taken in downstream flow. The speed of stream is :
A) 2 km/hr
B) 2.5 km/hr
C) 3 km/hr
D) 4 km/hr

3)
A steamer goes downstream from one port to another in 4 hours. It covers the same distance upstream in 5 hours. If the speed of stream is 2 km/hr, the distance between the two ports is
A) 50 km
B) 60 km
C) 70 km
D) 80 km

4)
The speed of a motor-boat is to that of the current of water as 36 : 5. The boat goes along with the current in 5 hours 10 minutes. It will come back in
A) 5 hours 50 minutes
B) 6 hours
C) 6 hours 50 minutes
D) 12 hours 10 minutes

5)
A man can row 15 km/hr downstream and 9 km/hr upstream. The speed of the boat in still water is
A) 8 km/hr
B) 10 km/hr
C) 15 km/hr
D) 12 km/hr

6)
Two boats A and B start towards each other from two places, 108 km apart. Speeds of the boats A and B in still water are 12 km/hr and 15 km/hr respectively. If A proceeds down and B up the stream, they will meet after.
A) 4.5 hours
B) 4 hours
C) 5.4 hours
D) 6 hours

7)
In a fixed time, a boy swims double the distance along the current that he swims against the current. If the speed of the current is 3 km/hr, the speed of the boy in still water is
A) 6 km/hr
B) 9 km/hr
C) 10 km/hr
D) 12 km/hr

8)
Speed of motorboat in still water is 45 km/hr. If the motorboat travels 80 km along the stream in 1 hour 20 minutes, then the time taken by it to cover the same distance against the stream will be
A) 3 hours
B) 1 hour 20 minutes
C) 2 hours 40 minutes
D) 2 hours 55 minutes

9)
A boat goes 20 km downstream in one hour and the same distance upstream in two hours. The speed of the boat in still water is
A) 15 km/hr
B) 10 km/hr
C) 5 km/hr
D) 7.5 km/hr

10)
A boat takes 4 hours for travelling downstream from point A to point B and coming back to point A upstream. If the velocity of the stream is 2 km/hr and the speed of the boat in still water is 4 km/hr. What is the distance between A and B?
A) 8 km
B) 9 km
C) 4 km
D) 6 km



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