Question 1113386
<pre>
           SPEED        TIME       DISTANCE
jet           r        1350/r        1350
Helicopter    r/5       135/(r/5)       135
                       4.5
</pre>
{{{1350/r+675/r=4.5}}}

-

{{{2025/r=4.5}}}

{{{450/r=1}}}

{{{highlight(r=450)}}}-----speed of jet