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The speed of a motor boat itself is 20 km/h and the rate of flow of the river is 4 km/h. Moving with the stream the boat went 120 km. What distance will the boat cover during the same time going against the stream?

Read Solution (Total 2)

distance=speed*time;
120=(20+4)*t;
t=5 hrs;
D=(20-4)*5;
D=80 km
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0.if you dont consider the boat
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