Question 763584
You can think of this as one aircraft standing still
and the other moving away from it at the sum
of their speeds
Let {{{ s }}} = the speed of the slower one
{{{ 2s }}} = the speed of the faster one
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{{{ 1500 = ( s + 2s )*5 }}}
{{{ 1500 = 15s }}}
{{{ s = 100 }}}
{{{ 2s = 200 }}}
Their speeds are 100 mi/hr and 200 mi/hr
check:
{{{ d[1] = s*5 }}}
{{{ d[1] = 100*5 }}}
{{{ d[1] = 500 }}}
and
{{{ d[2] = 2s*5 }}}
{{{ d[2] = 1000 }}}
and
{{{ d[1] + d[2] = 1500 }}}
OK