### Quantitative Aptitude - Boats & Streams

#### Question - 1

In one hour , a boat goes 11 km along the streame and 5 km against the stream. The speed of the boat in still water (in km/hr) in:

• A 3
• B 5
• C 8
• D 9

#### Question - 2

A man can row upstream at 8kmph and downstream at 13kmph.The speed of the stream is:

• A 2.5 km/hr
• B 4.2 km/hr
• C 5 km/hr
• D 10.5 km/hr

#### Question - 3

A boat running downstream covers a distance of 16km in 2 hours while for covering the same distance upstream,it takes 4 hours.What is the speed of the boat in still water?

• A 4 km/hr
• B 6 km/hr
• C 8 km/hr

#### Question - 4

A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will take to go 5km in stationery water?

• A 40 minutes
• B 1 hour
• C 1 hr 15min
• D 1 hr 30 min

#### Question - 5

A man can row  three quarters of a kilometers against the stream in 11 1/4 minutes.The speed(in km/hr)of the man in still water is:

• A 2
• B 3
• C 4
• D 5

#### Question - 6

A man takes twice twice as long to row a distance against the stream as to row the same distance in favour of the stream.The ratio of the speed of the boat(in still water) and the stream is:

• A 2 :1
• B 3 :1
• C 3 :2
• D 4 :3

#### Question - 7

A boat running upstream takes 8 hours 48 minutes to cover a certain distance while it takes 4 hours to cover the same distance running downstream.What is the ratio between the speed of the boat and speed of the water current respectively?

• A 2:1
• B 3:2
• C 8:3
• D Cannot be determined
• E None of these

#### Question - 8

If a boat goes 7 km upstream in 42 minutes and the speed of the stream is a 3 kmph, then the speed of the boat in still water is:

• A 4.2 km/hr
• B 9 km/hr
• C 13 km/hr
• D 21 km/hr

#### Question - 9

A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:

• A 8.5 km/hr
• B 9 km/hr
• C 10 km/hr
• D 12.5 kim/hr

#### Question - 10

If a man rows at the rate of 5 kmph in still water and his rate against the current in 3.5 kmph,then the man's rate along the current is:

• A 4.25 kmph
• B 6 kmph
• C 6.5 kmph
• D 8.5 kmph