A boat can travel 3.2 km upstream in 8 minutes.if the speed of the water current is 3 kmph in how much time the boat can travel 180km downstream/
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status of boat-
time = 8 min. = 8/60 hr
distance = 3.2 km
speed of boat = 3.2/(8/60) = (3.2 x 60) / 8 = 24 km/hr
if boat travel in downstream then total speed = 24 + 3 = 27 km/hr
total distance = 180 km
then time = 180/27 = 20/3 = 6.67 hr = 6 hr 40 min.
i hope it will help you
regrds
time = 8 min. = 8/60 hr
distance = 3.2 km
speed of boat = 3.2/(8/60) = (3.2 x 60) / 8 = 24 km/hr
if boat travel in downstream then total speed = 24 + 3 = 27 km/hr
total distance = 180 km
then time = 180/27 = 20/3 = 6.67 hr = 6 hr 40 min.
i hope it will help you
regrds
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