A runner can complete a 750 m race in two and a half minutes. What is the speed of runner in km/hr?

Question: A runner can complete a 750 m race in two and a half minutes. What is the speed of runner in km/hr?Solution:We are given that the first runner can complete a 750 m race in 2 minutes and 30 seconds or 150 seconds. ∴ Speed of the first runner = 750/150 = 5m/sec We convert this speed to km/hr by multiplying it by 18/5. Speed of the first runner = (5 × 18)/5 = 18 km/hr