Suppose a bicycle manufacturer that uses heijunka has received $1200$ orders $(400$ units of model A$,200$ units of model B$,$ and $600$ units of model C$)$ during the first quarter of this year. Suppose the firm$$s plant operates $4$ weeks a month and $5$ days a week, producing $300$ units of any model a week. Further suppose that the time required to produce one unit, regardless of model, is the same. Because the plant produces $300$ units a week, the firm has decided to operate its plant during the entire month of April this year, so that it can exactly meet the actual demand $(4$ weeks $*300$ units $=1200$ units$).$

Question#$1(5$ points$)$

Determine the best product mix and work sequence through heijunka.

Question#$2(5$ points$)$

Determine how many times your work sequence should be repeated every day.