1. In the Watt's Electronics problem, which product had the least profit per unit? How much profit did it contribute (round your answer up to the nearest cent) ?

Based solely on the output from the Watt's Electronics problem, part (d), calculate the maximum increase in profit if the availability time of test device 2 increases to 150.

	a.	$6,893.79
	b.	$114.90
	c.	$61.55
	d.	$3,693.10

3. JJ Watt Electronics manufactures the following six peripheral devices used in computers specially designed for jet fighter planes: internal modems, external modems, graphics circuit boards, USB memory stick, hard disk drives, and memory expansion boards. Each of these technical products requires time, in minutes, on three types of electronic testing equipment as shown in the following table: Internal External Circuit USB Hard Memory Modem Modem Board Stick Drives Boards Test device 1 7 3 12 18 17 Test device 2 2 5 3 2 15 17 Test device 3 5 3 2 9 2 The first two test devices are available 130 hours per week. The third (device 3) requires more preventive maintenance and may be used only 100 hours each week. Watt's Electronics believes that it cannot sell more than 2000, 1500, 1800, 1200, 1000, 1000 units of each device, respectively. Thus, it does not want to produce more than these units. The table that follows summarizes the revenues and material costs for each product: 6 200 Device Intemal modem External modem Circuit board USB memory stick Hard disk drive Memory expansion board Revenue per Material Cost unit sold ($) per unit (S) 35 120 25 180 40 130 45 430 170 260 60 In addition, variable labor costs are $16 per hour for test device 1. $12 per hour for test device 2, and $18 per hour for test device 3. Watt's Electronics wants to maximize its profits? 3. JJ Watt Electronics manufactures the following six peripheral devices used in computers specially designed for jet fighter planes: internal modems, external modems, graphics circuit boards, USB memory stick, hard disk drives, and memory expansion boards. Each of these technical products requires time, in minutes, on three types of electronic testing equipment as shown in the following table: Internal External Circuit USB Hard Memory Modem Modem Board Stick Drives Boards Test device 1 7 3 12 18 17 Test device 2 2 5 3 2 15 17 Test device 3 5 3 2 9 2 The first two test devices are available 130 hours per week. The third (device 3) requires more preventive maintenance and may be used only 100 hours each week. Watt's Electronics believes that it cannot sell more than 2000, 1500, 1800, 1200, 1000, 1000 units of each device, respectively. Thus, it does not want to produce more than these units. The table that follows summarizes the revenues and material costs for each product: 6 200 Device Intemal modem External modem Circuit board USB memory stick Hard disk drive Memory expansion board Revenue per Material Cost unit sold ($) per unit (S) 35 120 25 180 40 130 45 430 170 260 60 In addition, variable labor costs are $16 per hour for test device 1. $12 per hour for test device 2, and $18 per hour for test device 3. Watt's Electronics wants to maximize its profits