Question 1134735
<pre>
          SPEED     TIME           DISTANCE

train        60     900/60           900

boat         25     300/25           300

plane       350     400/350           400

taxi         25      15/25           15

TOTALS
</pre>
TIME
{{{90/6+300/25+40/35+15/25}}}
{{{15+12+8/7+3/5}}}
{{{28+1/7+3/5}}}
{{{28&26/35}}}


DISTANCE(miles)
{{{900+300+400+15}}}
{{{1615}}}


AVERAGE SPEED
{{{1615/(28&26/35)}}}


about 56.2 miles per hour