Consider a five$-$step process to assemble overhead projectors. The base of the projector is assembled in Step $3$ and the lamp assembly is done in Step $4.$ The base assembly takes inputs from Steps $1$ and $2$ where the two subassemblies for the same unit are worked upon simultaneously. Similarly in steps $3$ and $4$ the subassemblies for the same unit are simultaneously worked upon. The base and the lamp subassemblies are combined in Step $5$ to assemble the overhead projector. There is one worker at each step, and the entire process operates for $480$ min$/$day$.$

Now suppose Step $6-$ Final Inspection, which takes $21$ min per unit, is added after Step $5.$ There are two workers assigned at Step $6.$ Which of the following statement is TRUE?

Question $34$ options:

a$)$

The capacity and minimum flow time will stay the same

b$)$

The capacity will stay the same but the cycle time will increase

c$)$

The capacity will stay the same but the minimum flow time will increase

d$)$

Both capacity and cycle time will decrease