Three models, A$,$B$,$ and C$,$will be produced on a mixed$-$model assembly line. Hourly production rate and work content time for model A are $10$ units$/$hr and $45\mathrm{.}0$min; for model B are $20$units$/$hr and $35\mathrm{.}0$min; and for model C$$are $30$ units$/$hr$$and $25\mathrm{.}0$min. Line efficiency is $95\%,$balance efficiency is $0\mathrm{.}94,$ repositioning efficiency $=0\mathrm{.}93,$and manning level $=1\mathrm{.}3.$

Determine how many workers and workstations must be on the production line in order to produce this workload.

The correct answer is w $=39$ workers and n $=30$ stations please show correct steps.