A Firm Produces Two Models of Pagers, Products a and B

A firm produces two models of pagers, products A and B, on a produce-to-stock basis and is trying to develop a master production schedule for its operation. Safety stock is 30 for product A and 20 for product B. Fixed lot sizes are 70 for product A and 40 for product B. The beginning inventories are 30 for A and 30 for B. The demand for these products comes from many different sources, but the total weekly demand for each of the next six weeks is given as follows:
$\begin{array}{|l|l|l|l|l|l|l|}\hline & \text { Week } & & & & & \\\hline \text { Product } & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \text { A } & 60 & 30 & 50 & 60 & 70 & 60 \\\hline \text { B } & 50 & 20 & 40 & 30 & 30 & 40 \\\hline\end{array}$
a.What is the production quantity for Product A for Week 3?
b.What is the ending inventory for Product A for Week 3?
c.What is the production quantity for Product B for Week 5?
d.What is the beginning inventory for Product B for Week 5?