Six jobs are to be processed through a two$-$step opera$-$tion. The first operation involves sanding, and the second involves painting. Processing times are as follows: JOB OPERATION $1($HOURS$)$ OPERATION $2($HOURS$)$A $105$B$74$C$57$D$38$E$26$F$43$ Determine a sequence that will minimize the total completion time for these jobs. Illustrate graphically