Mathematics
Medium
Question
A man rows at a speed of 6 km/hr in still water. If the time taken to row a certain distance upstream is 4 times the time taken to row the same distance downstream, what is the speed of the river?
A
1.8 km/hr
B
3 km/hr
C
3.6 km/hr
✓ Official correct answer
D
4 km/hr
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A
1.8 km/hr
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B
3 km/hr
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C
3.6 km/hr
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D
4 km/hr
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