. A manufacturing company produce four kinds of products named x1, x2, x3, x4. The following table shows the resources needed for producing one unit of each product as well as the production rates per day.

Labour (Hours)

Machine (Hours)

Raw material (Pounds)

Production

X1

1

0.5

6

200

X2

0.5

0.2

16

300

X3

0.8

1

8

400

X4

0.2

0.8

4

100

This company consumes 5000 kilowatt-hours of Energy per day. Average labor cost is 12$ per hour, average machine cost is 10$ per hour, raw material costs 2$ per pound, and energy charges 3$ per kilowatt-hour.

a)What is the multifactor productivity?