Find Interview Questions for Oceaneering International Services

• Length of train = 260 meters

• Length of wall = 120 meters

• Time taken to cross the wall = 19 seconds

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✅ Step 1: Total distance to be covered
When the train crosses the wall, it must cover its own length plus the length of the wall:

Total distance = 260 m + 120 m = 380 meters

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✅ Step 2: Use the speed formula
Speed = Distance / Time
Speed = 380 m ÷ 19 s = 20 m/s

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✅ Step 3: Convert speed to km/h
1 m/s = 3.6 km/h
⇒ 20 × 3.6 = 72 km/h