EASY
UPSC CAPF AC Paper - I
IMPORTANT
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The current of a stream runs at 1 km/hr. A motorboat goes 35 km upstream and back again to the starting point in 12 hours. The speed of the motorboat in still water is km/hr.

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Important Questions on Streams

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Magical Book on Quicker Maths>Chapter 27 - Streams>Exercises>Q 12
A man can row 913 km/hr in still water and he finds that it takes him thrice as much time to row up than as to row down the same distance in river. The speed of the current is _____  km/hr.
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Magical Book on Quicker Maths>Chapter 27 - Streams>Exercises>Q 13
A man can row three quarters of a kilometre against the stream in 1114 minutes and return in 712 minutes. The speed of the man in still water is _____ km/hr.
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Magical Book on Quicker Maths>Chapter 27 - Streams>Exercises>Q 14
A boat can travel 4.2 km upstream in 14 minutes. If the ratio of the speed of the boat in still water to the speed of the stream is 7 : 1, how much time will the boat take to cover 17.6 km downstream? (in minutes)
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Magical Book on Quicker Maths>Chapter 27 - Streams>Exercises>Q 15
The speed of a boat in still water is 16 km/h and the speed of the current is 2 km/h. The distance travelled by the boat from point A to point B downstream is 12 km more than the distance covered by the same boat from point B to point C upstream in the same time. How much time will the boat take to travel from C to B downstream?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Magical Book on Quicker Maths>Chapter 27 - Streams>Exercises>Q 16
A boat can travel 12.8 km downstream in 32 minutes. If the speed of the current is 15 of the speed of the boat in still water, what distance it can travel in 27 minutes?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Magical Book on Quicker Maths>Chapter 27 - Streams>Exercises>Q 17
The respective ratio between the time taken by the boat to travel the same distance upstream in stream A and that in stream B is 7:6. The speed of the boat is 16 km/h and the speed of stream A is double the speed of stream B. What is the speed of stream B? (in km/h)
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Magical Book on Quicker Maths>Chapter 27 - Streams>Exercises>Q 18
A boat takes a total time of twelve hours to travel 105 km upstream and the same distance downstream. The speed of the boat in still water is six times that of the current. What is the speed of the boat in still water? (in km/hr)
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Magical Book on Quicker Maths>Chapter 27 - Streams>Exercises>Q 19
A boat running downstream covers a distance of 30 km in 2 hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the speed of the boat? (in km/h)