Friday

September 30, 2016
Posted by **Kgk** on Saturday, May 24, 2014 at 2:39am.

- Algebra -
**Steve**, Saturday, May 24, 2014 at 5:45amsince time = distance/speed,

d/(12-5) + d/(12+5) = 3

now just solve for d. Assuming the round trip takes 3 hours.