Each unit of product Alpha requires 3 kg of raw material. Next month's production budget for product Alpha is as follows.
Opening inventories:
Raw materials 15,000kg
Finished units of Alpha 2,000 units
Budgeted sales of Alpha 60,000 units
Planned closing inventories:
Raw materials 7,000kg
Finished units of Alpha 3,000 units
How many kilograms of raw materials should be purchased next month?