- A1.5
- B1
- C2
- D0.5
Step-by-Step Solution
Downstream = 24/3 = 8 km/h, upstream = 24/4 = 6 km/h; stream = (8 − 6) ÷ 2 = 1 km/h.
Answer: B) 1
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Speed, Time & Distance practice questions