Question 797793
first 1/3 of trip x \\ 1.5 \\ 1.5x
second 2/3 of trip (16 - 1.5x)/4.5 \\ 4.5 \\ 16 - 1.5x
========================================
total {16/6} \\ 6 \\ 16 
--------------
I don't know that that means.
What is the original problem?