v$.$

$.$

$.$

Question content area right

Part $1$

Six jobs are to be processed through a$$ two$-$step operation. The first operation involves$$ sanding, and the second involves painting. Processing times are as$$ follows:

$$

Job

Operation $1($hours$)$

Operation $2($hours$)$

Upper A

$12$

$4$

Upper B

$8$

$11$

Upper C

$5$

$14$

Upper D

$6$

$2$

Upper E

$9$

$10$

Upper F

$3$

$1$