A train 90 m long travels through a tunnel 231 m long in 11 seconds. What is its speed?
- 95.05 km/h
- 105.05 km/h
- 115.05 km/h
- 125.05 km/h
Explanation
Given:
- Train length = 90 m
- Tunnel length = 231 m
- Time = 11 seconds
Distance covered = 90 + 231 = 321 m
Speed = Distance ÷ Time
= 321 ÷ 11 = 29.18 m/s
Convert to km/h:
29.18 × 18/5 = 105.05 km/h
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