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A boat take 2hr 30minute to travel to 4km down and 4km up the river when water is flowing with 3 kilometre per hour how much time it will take for same trip if river start flowing at 1 kilometre per hour?
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A boat take 2hr 30minute to travel to 4km down and 4km up the river wh...
Boat can go 8km upstream in 1 hourAnd 8km downstream in 1 hour
Velocity of boat in still water=8km/hr
V1=Velocity of boat w.r.t to river=8km/hr
V2=velocity of riverw.r.t to ground=4km/hr
Down speed velcoity of boat=(8+4)km/hr=12km/hr
Upstream speed velocity of boat=(8-4)km/hr=4km/hr
Time taken downspeed=8/12
Time taken upstream=8/4
Total time= 8/12+8/4
=2/3+2
=2+6/3
=8/3
=2.66 sec
∴Time taken to by boat take to make the same trip when the river starts flowing at 4km/hr is 2.66sec
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A boat take 2hr 30minute to travel to 4km down and 4km up the river when water is flowing with 3 kilometre per hour how much time it will take for same trip if river start flowing at 1 kilometre per hour?
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A boat take 2hr 30minute to travel to 4km down and 4km up the river when water is flowing with 3 kilometre per hour how much time it will take for same trip if river start flowing at 1 kilometre per hour? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A boat take 2hr 30minute to travel to 4km down and 4km up the river when water is flowing with 3 kilometre per hour how much time it will take for same trip if river start flowing at 1 kilometre per hour? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A boat take 2hr 30minute to travel to 4km down and 4km up the river when water is flowing with 3 kilometre per hour how much time it will take for same trip if river start flowing at 1 kilometre per hour?.
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