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A man's speed with the current is 15 km hr and...

This question belongs to Arithmetic Ability Boats And Streams
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A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:

Answer & Solution
Correct Answer: Option C
Man's rate in still water
= (15 - 2.5) km/hr
= 12.5 km/hr.
Man's rate against the current
= (12.5 - 2.5) km/hr
= 10 km/hr.
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