Q. A man rows a boat at the speed of 6 km./hr. in still water. When the river flows with the speed 1.2 km./hr, then it takes 1 hour for the man to row from one place to another. How far is that place?
A) 1.44 km
B) 3.18 km
C) 2.88 km
D) 4.81 km
✔ Correct Answer: 2.88 km
Exam Insight
The effective speed of the boat downstream is 6 + 1.2 = 7.2 km/hr. Distance = speed × time = 7.2 × 1 = 7.2 km. Thus, the place is 7.2 km away.