题目:A buyer borrows money at 12% interest to pay a $4000 invoice with
term 1/10,n/30 on the 10th day of the discount period. The loan is
repaid on the 30th day of the invoice. What is the buyer's net
savings for this total events?
(A)$0 (B)$13.33 (C)$13.6 (D)$26.67
个人想法:这题题目我看不是很懂,我自己的想法是认为他可能在问隐含利率,
我的算法3960x12%x20/365=26.0383
40-26.0383=13.9617
可是没有这个答案,是我误会题目的意思吗?