Mathematics, 27.11.2019 03:31 alecnewman2002
Jeff and his roommate are in the cake baking business. when they receive an order over the internet, jeff prepares a bowl and mixes cake batter according to the order (takes 6 minutes). he then pours the batter into a baking pan that holds 1 cake (2 minutes). his roommate then puts the cake pan in the oven and sets a timer (1 minute). cakes bake in the oven for 9 minutes and then are cooled outside the oven on a rack for 5 minutes. finally the roommate takes 2 minutes to box the cake and then collects payment from the arriving customer (1 minute).
expect that each order is composed of a two tier cake (2 cakes). although the mixing bowl can hold batter for two cakes at one time, assume the oven can only hold one cake pan at a time. as mentioned above, pouring batter into each pan takes 2 minutes, and both cakes must be cooled before boxing the cake for the customer.
a. determine theoretical flow time from the order thru payment. assume no waiting over the entire process.
[a] minutes
now consider the effect on flow time given the following alternatives:
b. buy a second oven that can bake one cake pan (plus existing oven cooking 1 cake pan).
[b] minutes
c. replace oven with one that can hold two cake pans at the same time (still 9 min bake).
[c] minutes
d. replace oven with a faster convection oven that can bake one cake pan in 6 minutes (instead of 9).
[d] minutes
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