A boat moves downstream at the rate of 1 km in 71minutes and upstream

1.	A boat moves downstream at the rate of 1 km in 71minutes and upstream at the 2
A.	<table><tr><td rowspan="2">3</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">km/hour</td></tr><tr><td style="text-align: center;">2</td></tr></table>
B.	<table><tr><td rowspan="2">6</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">km/hour</td></tr><tr><td style="text-align: center;">2</td></tr></table>
C.
D.	4 km/hour
E.	8 km/hour
Answer» C.

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A boat moves downstream at the rate of 1 km in 71minutes and upstream at the 2

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