What will you personally do to make your peers aware of the seriousness of teen crashes?

Consider the simple 3-station assembly line illustrated below, where the 2 machines at station 1 are parallel, i.e., the product only needs to go through one of the 2 machines before proceeding to station 2.what is the throughput time of this process?

Me and category do i put them in because this is science

Can someone work out the answer as it comes up in one of my computer science exams and i don't understand the cryptovariables