Mathematics
Medium
Question
A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current?
A
3 kmph
B
1.5 kmph
✓ Official correct answer
C
13 kmph
D
6.5 kmph
Community credibility
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A
3 kmph
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B
1.5 kmph
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C
13 kmph
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D
6.5 kmph
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