- A11
- B10
- C5
- D12
Step-by-Step Solution
Downstream speed = 32/2 = 16 km/h; upstream speed = 24/4 = 6 km/h. Still-water speed = (16 + 6)/2 = 11 km/h.
Answer: A) 11
A launch takes 2 hours to cover 32 km downstream and 4 hours to cover 24 km upstream. What is its speed in still water (in km/h)?
Competition practiceSpeed, Time & Distance
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Speed, Time & Distance practice questions
More Speed, Time & Distance practice
A man can row at 6 km/h in still water. It takes him twice as long to row a certain…A boat goes 20 km downstream in 2 hours and returns the same distance upstream in 4…The Shatabdi's 270 m long rake is moving at 81 km/h. In how many seconds does it pass a…Aarti cycles from her home (A) to her aunt's village (B) at 14 km/h and returns along…Stations A and B are 455 km apart. At 6 a.m. one train leaves A for B at 60 km/h and…