sherie exercises each day. she can walk a mile in 20 minutes, but if she jogs she can do a mile in 10 minutes. she likes to divide her distance by walking and jogging equally. if she exercises for 2 hours how many miles will she have gone.
If she divides her time equally, there is one hour of walking and one hour of jogging.
60/10 = ?
60/20 = ?
Add the two quotients.