英语翻译

题目

英语翻译
A child withdraws from his piggy bank 10% of the original sum in the bank.If he must add 90 cnets to bring the amount in the bank back up to the original sum,what was the original sum in the bank?
最好能够翻译一下,不过到现在为止都看着有点混乱..
An apartment building has 5 floors,one of which has only 2 apartments.Each of the other floors has 4 apartments.
比较：
3 times the number of floors in the building
the number of apartments in the building
这个apartment 是什么？一个floor怎么会有2个apartment？

答案

我的理解是：孩纸从银行账户取出总额的10%.如果他要拿出90美分（cnets,我理解为cents不知道楼主你是不是打错字了.）才能与原账户存款一致,他的账户里面原先有多少钱?
楼主你自己斟酌一下下吧.
楼主你注意看,第一个是apartment building.指的是那种公寓式的住宅--就是后面提到的一层楼4个apartments一样,指的是公寓.用apartment是为了跟别墅什么的有区别.