A boat can travel 6.5 km upstream in 26 minutes. It can travel 7.5 km in 15 minutes What is the speed of the boat in still water 2 (in kmph)
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A boat can travel 6.5 km upstream in 26 minutes. It can travel 7.5 km in 15 minutes What is the speed of the boat in still water? (in kmph)
- Let the speed of the boat in still water be x and speed of the stream be y
- Now speed of boat in upstream will be 6.5 (x – y) and speed of boat in downstream will be 7.5 (x + y)
- Now we have the equations
- 6.5 (x – y) = 26
- 7.5 (x + y) = 15
- (x – y) = 26/6.5
- (x + y) = 15/7.5
- So (x – y) = 4
- (x + y) = 2
- 2x = 6
- Or x = 3
Therefore speed of boat in still water is 3 km/hr
Reference link will be
https://brainly.in/question/6457018
(Upstream speed should be lower than downstream speed so question should be corrected)
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