Question $8$

Howard Submarines sandwich shop provides tasty hot sandwiches in Hayward city.

Customer first places and pays for an order. Then a worker retrieves and cuts the

bread. The bread is then sent to one of the two parallel lines where a worker fills

ingredients and places the sandwich onto the toaster conveyor belt. The toasted

sandwich that comes out of the toaster is wrapped and given to the customer. The

following diagram shows the steps involved in this process and the process times.

What is the svstem process time of the sandwich process?

$30$ seconds

$50$ seconds

$40$ seconds

$95$ seconds

$15$ seconds