kboardcdn.com$/5$e$454$d$481$f$587/2187261?$X$-$Blackboard$-$S$3-$Bucket$=$learn$-$eu$-$central$-1-$

$\frac{20}{33}$

Cases of product are conveyed to automatic palletizers for palletizing. Depending on the particular product and carton dimensions, the palletizer has to be programmed by an operator. Typically, $25$ pallet loads are completed before reprogramming is needed. The reprogramming requires $4$ minutes. The palletizer operates automatically for $40$ minutes. The palletizer operator also must restock the machine with empty pallets; this can be done at any time during the last $10$ minutes of the palletizer's automatic run time; restocking pallets requires $5$ minutes. Travel time between palletizers, plus data entry in the computer system by the operator, requires $3$ minutes.