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

A boat goes 6 km an hour in still water, but it takes thrice as much t

1.	A boat goes 6 km an hour in still water, but it takes thrice as much time in going the same distance against the current. The speed of the current (in km/hr) is:(INFOTECH COMPANY)
A.	5
B.	4
C.	2
D.	3
Answer» D. 3