A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
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Answered by
6
Hi !!
Speed of boat in still water = 13 km /hr
Speed of the stream = 4 km/hr
Total speed = 13 + 4 = 17 km/hr
Time = distance / speed
distance = 68 km
time = 68 / 17
= 4 hours
Speed of boat in still water = 13 km /hr
Speed of the stream = 4 km/hr
Total speed = 13 + 4 = 17 km/hr
Time = distance / speed
distance = 68 km
time = 68 / 17
= 4 hours
Answered by
0
Speed of boat=13km/h
Opposing speed=4km/h
Net speed=13-4=9km/h
Distance=68km
Time=68/9
= 7.55hours
Opposing speed=4km/h
Net speed=13-4=9km/h
Distance=68km
Time=68/9
= 7.55hours
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