Who is asking: Student
You haven't said what units you want for the walking rate so I am going to use kilometers per hour, that is kilometers divided by hours. They both walked 20 kilometers so so what remains is to put the time in hours and then divide.
Jefferson took 1 hour, 20 minutes and 7 seconds. There are 60 minutes in an hour so 20 minutes is 20/60 = 1/3 hours. There are 60 seconds in a minute and hence 60 x 60 = 3600 seconds in an hour. Thus 7 seconds is 7/3600 hours. Hence 1 hour, 20 minutes and 7 seconds is
What is Josef's rate?Penny