A person crosses a 1600 m long street in 4 min. What is his speed (in km/h)?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 24
Speed = Distance Travelled/Time taken
⇒ Speed = 1600/4 × 60 = 40/6 m/sec
40/6 m/sec = (40/6) × (18/5) km/h = 8 × 3 km/h = 24 km/h