- 10 sec.
- 9 sec.
- 12 sec
- 15 sec

Option 2 : 9 sec.

**Given:**

Length of the train = 135

Speed of the train = 62 km/hr

Speed of the man = 8 km/hr

Concept used:

Objects moving in the same direction = Difference of Speeds

Formula used:

Distance = Speed × Time

Time = Distance/Speed

**Calculation:**

Relative speed of the train to man = 62 - 8 = 54 km/h = 54 × 5/18 = 15 m/sec

According to the question,

Required time to pass the train = Length of the train/Relative speed

⇒ 135/15 = 9 sec.

**∴ Required time to pass the train is 9 sec.**

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