Roberts and Sons, Inc., of Great Britain has just purchased inventory items costing kroner 1,000,000 from a

Question:

Roberts and Sons, Inc., of Great Britain has just purchased inventory items costing kroner 1,000,000 from a Swedish supplier. The supplier has quoted terms 3/15, net 45. Under what conditions might Roberts and Sons reasonably take the discount, and when might it be a reasonable idea to wait the full 45 days to pay?
a. Cost of trade credit.
b. Taking the discount.
c. Exchange rates change.