Question 1128196
<pre>
        SPEED        TIME        DISTANCE

        2            x            2x
        5            y            5y
TOTAL                             31


        SPEED        TIME        DISTANCE

        5            x            5x
        2            y            2y
TOTAL                             31+15
</pre>


{{{system(2x+5y=31,5x+2y=46)}}}


{{{system(4x+10y=62,25x+10y=230)}}}


{{{system(x=8,and,y=3)}}}


Total time,  11 hours