Question 900864
Think of one track as standing still and
the other moving at the sum of their speeds
{{{ 600 = ( 61 + 59 )*t }}}
{{{ 600 = 120t }}}
{{{ t = 5 }}}
The two trucks be 600 miles apart in 5 hrs
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check:
{{{ d[1] = 61*5 }}}
{{{ d[1] = 305 }}}
and
{{{ d[2] = 59*5 }}}
{{{ d[2] = 295 }}}
{{{ d[1] + d[2] = 305 + 295 }}}
{{{ d[1] + d[2] = 600 }}}
OK