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Arrest boat covers a distance of 60 km downstream in one and half hour it covers distance upstream in 2 hours the speed of the boat in still water is 35 kilometre per hour find the speed of the stream?
Verified Answer
Arrest boat covers a distance of 60 km downstream in one and half hour...
Let The Speed Of Stream Be x km/hr.

Now Speed Upstream = 35-x

Speed Downstream = 35+x

Now Time = Distance/Speed

3/2 = 60/35+x

And

2 = 60/35-x

Cross Multiplying We Get

105+3x = 120

3x = 15

x = 5

Check By Solving Other Equation

2 = 60/35-x

70-2x = 60

2x = 10

x = 5

So

Speed Of Stream = 5km/hr
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Most Upvoted Answer
Arrest boat covers a distance of 60 km downstream in one and half hour...
Given Data:
Distance downstream = 60 km
Time downstream = 1.5 hours
Time upstream = 2 hours
Speed of boat in still water = 35 km/h

Let's assume:
Speed of stream = x km/h

Calculations:
- Speed downstream = Speed of boat in still water + Speed of stream = 35 + x km/h
- Speed upstream = Speed of boat in still water - Speed of stream = 35 - x km/h

Downstream Calculation:
- Distance = Speed x Time
- 60 = (35 + x) x 1.5
- 60 = 52.5 + 1.5x
- 1.5x = 7.5
- x = 5 km/h

Upstream Calculation:
- Distance = Speed x Time
- 60 = (35 - 5) x 2
- 60 = 60

Conclusion:
The speed of the stream is 5 km/h.
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Arrest boat covers a distance of 60 km downstream in one and half hour it covers distance upstream in 2 hours the speed of the boat in still water is 35 kilometre per hour find the speed of the stream?
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Arrest boat covers a distance of 60 km downstream in one and half hour it covers distance upstream in 2 hours the speed of the boat in still water is 35 kilometre per hour find the speed of the stream? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Arrest boat covers a distance of 60 km downstream in one and half hour it covers distance upstream in 2 hours the speed of the boat in still water is 35 kilometre per hour find the speed of the stream? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Arrest boat covers a distance of 60 km downstream in one and half hour it covers distance upstream in 2 hours the speed of the boat in still water is 35 kilometre per hour find the speed of the stream?.
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