Two types of customers are served by a two-step process. Each resource is staffed by one employee. Customer A spends two minutes at resource X and five minutes at resource Y. Customer B spends five minutes at resource X and two minutes at resource Y. The demand rate per hour is 10 customer A and 15 customer B. What is the workload for resource Y across all customer types?
80 minutes per hour
105 minutes per hour
95 minutes per hour
70 minutes per hour