speed of a boat in standing water is 7km/hr and the speed of the stream is 1.5 km/hr a distance of 7.7 km going upstream is covered in
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This is a question on relative speed.
The relative speed of the speed boat upstream is :
7 - 1.5 = 5.5 km/h
Time = Distance /speed
Time = 7.7 / 5.5
Time = 1.4 hrs
hemabezawada66:
thank u so much
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