Prep T1-DS-40

[w062611]

Beth's bank charges a service fee on a regular checking account for each month in which the balance on the account falls below $100 at any time during the month. Did the bank charge a service fee on Beth's regular checking account last month?

(1) During last month, a total of $1,000 was withdrawn from Beth's regular checking account.

(2) At the beginning of last month, Beth's regular checking account balance was $500.

答案為E

我選C

不太懂耶

請高手解惑一下

感激不盡

[hwatai]

帳戶餘款低於一百元時，銀行要收一筆SERVICE FEE，請問Beth上個月有沒有被收這個費用？

1. Beth提了1000元
2. 上個月期初，beth的戶頭有500元

兩個獨立都不充份
合在一起時，只知道一定有存款進入(不然提不了一千元)，

存款如果是550，期末是500+550-1000=50元，要被收service fee
存款如果是一百萬，期末時當然就不會被收手續費了

因此仍然不充份，答案E