$9\mathrm{.}20$ S ppose production requirements in Solved Problem $9\mathrm{.}2$ 'see pa$,$ e $402)$ increase and require a reduction in cycle time from$-$o nutes to $7$ minutes. Balance the line once again, using the new cycle time. Note that it is not possible to combine task times so as to group tasks into the minimum number of workstations. This condition occurs in actual balancing problems fairly often.

$-.,9\mathrm{.}21$ The preinduction physical examination given by the U$.$S$.$ Army involves the following seven activities:

$\backslash$table$[[$Activity$,\backslash$table$[[$Average Time$],[($min$)]]],[$Medical history,$10],[$Blood tests,$8],[$Eye examination,$5],[$Measurements $($i$.$e$.,$ weight, height, blood pressure$),7],[$Medical examination,$16],[$Psychological interview,$12],[$Exit medical evaluation,$10]]$