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FrankSun · 2020年10月29日

一道数学问题

Q. Brown Corporation had average days of sales outstanding of 19 days in the most recent fiscal year. Brown wants to improve its credit policies and collection practices and decrease its collection period in the next fiscal year to match the industry average of 15 days. Credit sales in the most recent fiscal year were $300 million, and Brown expects credit sales to increase to $390 million in the next fiscal year. To achieve Brown’s goal of decreasing the collection period, the change in the average accounts receivable balance that must occur is closest to:

  1. +$0.41 million.
  2. –$0.41 million.
  3. –$1.22 million.

Solution

A is correct. The average accounts receivable balances (actual and desired) must be calculated to determine the desired change. The average accounts receivable balance can be calculated as an average day’s credit sales times the DSO. For the most recent fiscal year, the average accounts receivable balance is $15.62 million [= ($300,000,000/365) × 19]. The desired average accounts receivable balance for the next fiscal year is $16.03 million (= ($390,000,000/365) × 15). This is an increase of $0.41 million (= 16.03 million – 15.62 million). An alternative approach is to calculate the turnover and divide sales by turnover to determine the average accounts receivable balance. Turnover equals 365 divided by DSO. Turnover is 19.21 (= 365/19) for the most recent fiscal year and is targeted to be 24.33 (= 365/15) for the next fiscal year. The average accounts receivable balances are $15.62 million (= $300,000,000/19.21), and $16.03 million (= $390,000,000/24.33). The change is an increase in receivables of $0.41 million

老师,365/sales/AR=days,不应该是 AR=365/(sales*days)这样吗?也就是AR等于0.064啊...

1 个答案

Olive_品职助教 · 2020年10月30日

365/(sales/AR)=DAYS

sales/AR=365/days

AR=sales/(365/days)=sales*days/365

解法很多,这是基本的数学关系,供参考。

FrankSun · 2020年11月03日

懂了,是不是是因为365/(sales/AR)=DAYS,365下面的分母有括号(sales/AR),所以不能直接把AR导上来从365/sales/AR变成365/(sales*AR),对吧?有时候就被这些小地方绊倒...

Olive_品职助教 · 2020年11月03日

分母除以一个数,可以把这个数翻到上面,变成整个分式或者分子乘以这个数。基本数学问题只能自己多做题熟悉一下了。

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