A boat takes 8 hours to move downstream from point p to Q and to return to point P moving upstream of the speed of the stream is 4 km/hr and the Speed of the boat in still water is 8 km/hr what is the distance between point P and Q
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The distance between point P and Q is 96 km.
Given:
- A boat takes 8 hours to move downstream from point p to Q.
- Return to point P moving upstream of the speed of the stream is 4 km/hr.
- Speed of the boat in still water is 8 km/hr.
To find:
- What is the distance between point P and Q?
Solution:
Formula /Concept to be used:
- Speed= Distance/time
- Speed of upstream= Speed of boat in still water-speed of stream.
- Speed of downstream= Speed of boat in still water+speed of stream
Step 1:
Time take to go downstream from P to Q=8 hours.
Speed of boat going downstream=(8+4) km/hr
Speed of boat going downstream= 12 km/hr.
Step 2:
Find the distance between P and Q.
or
PQ= 12×8
PQ= 96 km
Thus,
The distance between point P and Q is 96 km.
Learn more:
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