A certain business produced X ranks each month from November through February and shipped X/2 ranks at the beginning of each month from March through October. The business paid no storage costs for the rakes from November through February, but it paid storage costs of $0.1 per rake each month from March through October for the rakes that had not been shipped. In terms of X, what was the total storage cost, in dollars, that the business paid for the 12 months from November through October?
A. 0.4x B. 1.2x C. 1.4x D. 1.60x E. 3.2x作者: bigpig 时间: 2010-4-8 10:07
Answer: C. 1.4x
题目说的是一桩生意是从当年的11月到到第二年的2月，每个月生产X个rakes；然后第二年的3月到10月，每个月的开头将X/2个rakes装船运走，从当年的11月到第二年的2月，rakes是免仓储费费。从第二年的3月开始到10月，每月的仓储费是按照还没有运走的rake的个数乘以0.1美元收取的。
问从当年11月到第二年的10月这桩生意一共要付多少仓储费。
