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Airforce Group Y 13 Jul 2021 Shift 1 Memory Based Paper

- 245 m
- 375 m
- 275 m
- 345 m

Option 1 : 245 m

Given:

Length of train = 130 m

Speed = 45 km/h

Time to covered a platform = 30 seconds

Concept:

Speed × Time = Distance

Calculation:

Let, the length of the platform = x metre

Speed of the train = 45 km/hr = 45 × (5/18) m/s

According to the question,

⇒ (x + 130) = 30 × 45 × (5/18)

⇒ x + 130 = 375

⇒ x = 375 - 130

⇒ x = 245 m

∴ Length of the platform is 245 meters.

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