Triathlete Dan runs along a 4-mile stretch of river and then swims back along the same route. If Dan runs at a rate of 10 miles per hour and swims at a rate of 6 miles per hour, what is his average rate for the entire trip in miles per minute?	Choose the correct choice from the following answers:	A) 1/8	B) 2/15	C) 3/15	D) 1/4	E) 3/8
Dan travels 8 miles round trip.   Running part: (4/10 *60 = 24 minutes)   Swimming Part: (4/6 *60 = 40 minutes)   8 miles in (24+40) minutes   8/64 = 1/8 mile per minute   1/8nswer: 1/8 mile per minute
<result>A</result>
Triathlete Dan runs along a 4-mile stretch of river and then swims back along the same route. If Dan runs at a rate of 10 miles per hour and swims at a rate of 6 miles per hour, what is his average rate for the entire trip in miles per minute?