- A1
- B1.5
- C0.5
- D2
Step-by-Step Solution
Downstream speed = 24/3 = 8 km/h; upstream = 18/3 = 6 km/h; stream speed = (8 − 6)/2 = 1 km/h.
Answer: A) 1
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Speed, Time & Distance practice questions