The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is ?
A. 7.5 kmph
B. 8 kmph
C. 5.5 kmph
D. 6 kmph
Answer:D
The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is ?
A. 7.5 kmph B. 8 kmph C. 5.5 kmph D. 6 kmph