Product A requires 7.1 minutes of milling, 7 minutes for inspection, and 6 minutes of drilling per unit; product B requires 7.3 minutes of milling, 5 minutes for inspection, and 8 minutes of drilling per unit; product C requires 2.6 minutes of milling, 3 minutes for inspection, and 15 minutes of drilling.    The department has 12 hours available during the next period for milling, 15 hours for inspection, and 24 hours for drilling. Product A contributes $2.0 per unit to profit, product B contributes $2.3 per unit, and product C contributes $4.0 per unit.   How do you express the milling constraint mathematically? NOTE: Let A,B, and C denote respectively the number of A, B, and C to be produced.

Practical Management Science
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6. 

Product A requires 7.1 minutes of milling, 7 minutes for inspection, and 6 minutes of drilling per unit; product B requires 7.3 minutes of milling, 5 minutes for inspection, and 8 minutes of drilling per unit; product C requires 2.6 minutes of milling, 3 minutes for inspection, and 15 minutes of drilling. 
 

The department has 12 hours available during the next period for milling, 15 hours for inspection, and 24 hours for drilling. Product A contributes $2.0 per unit to profit, product B contributes $2.3 per unit, and product C contributes $4.0 per unit.  

How do you express the milling constraint mathematically? NOTE: Let A,B, and C denote respectively the number of A, B, and C to be produced. 


 

a.
A + B + C <= 12
b.
A + B + C <= 720
c.
7.1 A + 7.3 B + 2.6 C <= 12
d.
7.1 A + 7 B + 6C <= 12
e.
7.1 A + 7.3 B + 2.6 C <= 720
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