og 161求解。。。

milku · 发表于 2010-8-7 20:29:53

161. Beginning in January of last year Carl made deposits of $120 into his account on the 15th of each month for several consecutive months and then made withdrawals of $50 from the account on the 15th of each of the remaining months last year. There were no other transactions in the account last year. If the closing balance of Carl's account for May of last year was $2600, what was the range of the monthly closing balances of Carl's account last year?

(1) Last year the closing balance of Carl's account for April was less than $2625
(2) Last year the closing balance of Carl's account for June was less than $2675

我明白存款月是到5月，6月开始取款，
但是，我看了很多帖子，说range是5月到12月，我很困惑，1月的不是更低吗？？？求教。谢谢

maggie520 · 发表于 2010-8-7 21:13:49

errr...lz不用管是几月吧？人家问的是range of monthly closing balances..问的是钱~ 所以只要条件能成立就好了~

og 161求解。。。

所属分类: GMAT考试

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