Question 534432
Going to LA, Steve's speed is 
{{{ 200 / 4 = 50 }}} mi/hr
His average speed coming back is
{{{ 50 - 10 = 40 }}} mi/hr
Coming back:
{{{ 200 = 40*5 }}}
{{{ 200 = 200 }}}
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This problem seems to give all
the data needed, so it's not
really a problem