- A30
- B22
- C20
- D25
Step-by-Step Solution
Total distance = 200 + 300 = 500 m; speed = m/s; time = 500 ÷ 20 = 25 s.
Answer: D) 25
A train 200 m long running at 72 km/h crosses a platform 300 m long. How many seconds does it take to cross the platform?
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