2. A boat covers a certain distance downstream in 1 hour, while it comes back in 1 1/2 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?
A. 15 kmph
B. 14 kmph
C. 12 kmph
D. 13 kmph
2. A boat covers a certain distance downstream in 1 hour, while it comes back in 1 1/2 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?
A. 15 kmph
B. 14 kmph
C. 12 kmph
D. 13 kmph