Borges Machine Shop, Inc., has a $1-$year contract for the production of $200,000$ gear housings for a new off$-$road vehicle. Owner Luis Borges hopes the contract will be

extended and the volume increased next year. Borges has developed costs for three alternatives. They are general$-$purpose equipment $($GPE$),$ flexible manufacturing

system $($FMS$),$ and expensive, but efficient, dedicated machine $($DM$).$ The cost data follow:

The option GPE is best when the contracted volume is below $31,250$ units $($enter your response as a whole number$).$

The option FMS is best when the contracted volume is between $31,250$ and $275,000$ units $($enter your responses as whole

The option DM is best when the contracted volume is over $656$ units $($enter your response as a whole number$).$