Each station can only work on one sub at a time. The flow times at each station are as follows:

Step Time to complete one sub $($min$)$

Select Meat, Bread, and Cheese $0\mathrm{.}52$

Toast Sandwich $0\mathrm{.}67$

Add Veggies and Condiments $0\mathrm{.}58$

Pay Cashier $0\mathrm{.}50$

Assuming we are not being starved by raw materials supply, blocked by demand, or somehow otherwise slowed down by breakdowns or the like, what is the throughput rate of the process, in sandwiches$/$min$?$ Please use at least four significant figures in your calculations.

Your answer: