A boat goes 6 km an hour in still water, but takes thrice as much time in going the same distance against the current. The speed of the current (in km/hour) is ?

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Extraordinary Math

Q. A boat goes 6 km an hour in still water, but takes thrice as much time in going the same distance against the current. The speed of the current (in km/hour) is ?

(A) 4
(B) 5
(C) 3
(D) 2

Correct Answer - Option(A)

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