QUESTION 25 Xebec Technologies Corporation (XTC) produces three different types of stringers which are used in building fuselages for the aerospace industry. The manufacturing process requires three machine operations for each type of stringer. Data for the demand of each type of stringer and the productivity of each type of machine is given below. Machine 1 Machine 2 Machine 3 Demand Units/Hr. Units/Hr. Units/Hr. A 100,000 7 9 12 B 120,000 3 5 6 80,000 5 6.0 7.0 For stringer type A, how many types of Machine 1, Machine 2, and Machine 3 will be required if XTC operates 2-eight hour shift each day and for 280 days a year? 3, 3, 2 4, 3, 2 7,5,4 14, 9,6