Question: just need help with these two please! Christopher's Cranks uses a machine that can produce 100 cranks per hour. The firm operates 12 hours per

Christopher's Cranks uses a machine that can produce 100 cranks per hour. The firm operates 12 hours per day, five days per week. Due to regularly scheduled preventive maintenance, the firm expects the machine to be running during approximately 95% of the available time. Based on experience with other products, the firm expects to achieve an efficiency level for the cranks of 85%. What is the expected weekly output of cranks for this company? A. 969 B. 5700 C. 5100 D. 6783 E. 4845 Gibson Valves produces cast bronze valves on an assembly line, currently producing 2,400 valves each 8-hour shift. If the productivity increases by 90%, it would then be: (Do not round intermediate calculations. Round answer to the nearest whole number.) A. 570 valves /hr. B. 300 valves /hr. C. 30 valves /hr. D. 158 valves /hr. E. 1,140 valves /hr
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