Jim and Fred are the only two cashiers employed at a retail store. Each of them works the same 40 hours per week and each can check out 30 customers per hour by manually entering the price of each product purchased into the cash register. The store owner replaces the old cash registers with new ones that automatically scan product prices into the register. With the new cash register, Jim and Fred can each check out 60 customers per hour. Their average labor productivity as a team before the new cash registers were introduced was ______ customers per hour and ______ customers per hour after the new machines were installed.

Question

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The average labor productivity as a team before the new cash registers were introduced was 30 customers per hour (30 customers per hour per cashier x 2 cashiers). After the new machines were installed, the average labor productivity as a team increased to 60 customers per hour (60 customers per hour per cashier x 2 cashiers).

Jim and Fred Are the Only Two Cashiers Employed at a Retail