Steamline Bicycles produces two kinds
of bikes, mountain bikes and road bikes.
It takes 4 hours to build a mountain bike
and 3 hours to build a road bike. The
company has 21 employees, each with
a 40 hour work week. Due to demand,
they must produce at least 250 total
bikes each week. If they profit $75 on
each mountain bike and $60 on each
road bike, how many of each
type should they produce in a week
to maximize their profit?