a person travels from his house to office from 11:10am to 11:50 am and covers a distence of 13.4km. find the average speed of the person.
Pick one.
A) 20.1km/h B) 20.5km/h C) 21.1km/h D) 22.1km/h E) 20.9km/h
time=11:50-11:10=40min=2/3hour   distance=13.4km   speed=13.4*3/2= 
<gadget id="calculator">13.4*3/2</gadget>
<output>20.1</output>
20.1km/h   20.1km/hNSWER:20.1km/h
<result>A</result>
a person travels from his house to office from 11:10am to 11:50 am and covers a distence of 13.4km. find the average speed of the person.