What is the speed required for a bike to cover a distance of 720 km in 12 hours?  Choose the correct choice from the following answers.
A) 50 kmh B) 40 kmh C) 100 kmh D) 60 kmh E) 80 kmh
Speed= 60 kmhistance / Time   Speed = 720 / 12= 
<gadget id="calculator">720 / 12</gadget>
<output>60</output>
60   Answer: 60 kmh
<result>D</result>
What is the speed required for a bike to cover a distance of 720 km in 12 hours?