2010 · Q33
A motorboat takes 2 hours to travel a distance of 9 km down the current and it takes 6 hours to travel the same distance against the current. What is the speed of the boat in still water in kmph?
Elementary MathematicsTime and Distance
- A3
- B2
- C5
- D1
Explanation
Downstream 4.5, upstream 1.5; boat speed = 3 kmph.