Correct Answer - Option 4 : 50 metres/seconds
Given;
The distance covered by the taxi driver = 3420 km
Time to cover the distance = 19 hours
Formula used:
Speed = Distance/Time
1 km/h = (5/18) m/s
Calculation:
Speed = 3420/19
⇒ 180 km/hour
⇒ 180 × (5/18) m/s
⇒ 50 m/s
∴ Its speed is 50 m/s.