Correct Answer - Option 2 : 11 km/hr
Given:
The distance covered by man = 220 meter
Time taken to cover the distance by the man = 1min 12sec = (60 + 12) sec = 72 sec
Concept:
Speed = distance/time
Speed (km/hr) = Speed (m/sec) × (18/5)
Calculation:
Speed of the racer man (km/hr) = (220/72) × (18/5) = 11 km/hr
∴ His actual speed in km/hr is 11 km/h.
