a Boat can cover 10 kilometre of the stream and 5 km downstream in 6 hour if the speed of stream is 1.5 km per hour find the speed of the boat in still water
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Answer:
The speed of the boat in still water is 3.5 km/h
Step-by-step explanation:
Given:
The distance covered by the boat up the stream is 10 km
The distance covered by the boat down the stream is 5 km
The time taken in both travels is 6 hours.
The speed of the stream is 1.5 km/h
To find:
Speed of the boat in still water = ?
Solution:
The distance covered by the boat up the stream is 10 km
The distance covered by the boat down the stream is 5 km
The time taken in both travels is 6 hours.
The speed of the stream is 1.5 km/h
Using time = distance/speed, we get the following equation
Now with the equation solved we get two values x = 3.5, -1.
Now speed cannot be -1 therefore, the speed of the boat in still water is 3.5 kmph.
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