Boats and Streams aptitude questions are a popular category of questions that are asked in various competitive exams, entrance tests, and interviews. The two fundamental concepts in the Boats and Streams Aptitude Quiz are upstream and downstream. So we insist the people take this Boats and Streams aptitude online test to improve their knowledge and crack the exams very easily.
__Boats and Streams Formulae__

1. Speed downstream = (u + v) km/hr.

2. Speed upstream = (u - v) km/hr.

3. Speed in still water = 1(a + b)/2 km/hr.

4. Rate of stream = 1(a - b)/2 km/hr.

2. Speed upstream = (u - v) km/hr.

3. Speed in still water = 1(a + b)/2 km/hr.

4. Rate of stream = 1(a - b)/2 km/hr.

1. 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?
### Workspace

### Report Error

2. A boat goes 100 km downstream in 10 hours, and 75 m upstream in 15 hours. The
speed of the stream is?
### Answer & Explanation

### Workspace

### Report Error

Answer: Option D

Explanation:

100 --- 10Â Â Â Â Â Â Â Â Â Â Â Â DS = 10

? ----Â 1

75 ---- 15Â Â Â Â Â Â Â Â US = 5

? ----- 1Â Â Â Â Â Â Â Â Â Â S = (10 - 5)/2

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 2Â 2 Â½Â kmph

3. A man can row his boat with the stream at 6 km/h and against the stream in 4
km/h. The man's rate is?
### Workspace

### Report Error

4. A man can swim in still water at 4.5 km/h, but takes twice as long to swim
upstream than downstream. The speed of the stream is?
### Answer & Explanation

### Workspace

### Report Error

Answer: Option D

Explanation:

M = 4.5

S = x

DS = 4.5 + x

US = 4.5 + x

4.5 + x = (4.5 - x)2

4.5 + x = 9 -2x

3x = 4.5

x = 1.5

5. A man can row with a speed of 15 kmph in still water. If the stream flows at 5
kmph, then the speed in downstream is?
### Workspace

### Report Error