It takes Joey the postman 1 hours to run a 2 mile long route every day. He delivers packages and then returns to the post office along the same path. If the average speed of the round trip is 3 mile/hour, what is the speed with which Joey returns?	Choose the correct choice from the following answers.
A) 1  B) 6  C) 13  D) 14  E) 15
let his speed for one half of the journey be 2 miles an hour   let the other half be x miles an hour   now,   avg speed =3 mile an hour   2*2*x/2+x=3   4x=3x+6=&gt;x=6   6
<result>B</result>
It takes Joey the postman 1 hours to run a 2 mile long route every day. He delivers packages and then returns to the post office along the same path. If the average speed of the round trip is 3 mile/hour, what is the speed with which Joey returns?