Answer:
82,500
Step-by-step explanation:
The computation of the minutes of grinding machine required to satisfy demand is shown below
= (4,800 units × 4.60 + 4,800 units × 6.10 + 3,800 × 5.10 + 2,800 × 4.20)
= 22,080 + 29,280 + 19,380 + 11,760
= 82,500
We simply multiplied the Grinding minutes per unit with the Monthly demand in units and the same is to be considered above