A cyclist covers a distance of 750 meters in 2 minutes and 30 seconds. What is his speed in km/hr?

18 km/hr

16 km/hr

17 km/hr

None of these

To find speed, convert the time to hours and distance to kilometers:

Time = 2 minutes 30 seconds = 2.5 minutes = 2.5/60 = 1/24 hours

Distance = 750 meters = 0.75 kilometers

Speed = Distance / Time = 0.75 / (1/24) = 0.75 x 24 = 18 km/hr