各位大佬求求啦！

JasmineCute

From May 1 to May 30 in the same year, the balance in a checking account increased. What was the balance in the checking account on May 30?

(1) If, during this period of time, the increase in the balance in the checking account had been 12 percent, then the balance in the account on May 30 would have been $504.

(2) During this period of time, the increase in the balance in the checking account was 8 percent.

请问这道题为什么不能选A呀？

IsabelleZZ

确定题目没有打错吗？如果没错的话，条件（1）是条件里还套了一个条件”if the increase... had been 12 percent“,这个内层的条件并不一定成立。

长丝弓

条件1是虚拟的，得出等式为X*（1+12%）=504，这个X是5月1日账户钱数，根据条件1可以求得（注意，增长率这里我们是不知道的，12%是个假设值！真正的增长值到条件2才给出）所以不能选A

gmat想考好

答案是C??

JasmineCute

IsabelleZZ 发表于 2020-9-7 18:40
确定题目没有打错吗？如果没错的话，条件（1）是条件里还套了一个条件”if the increase... had been 12 pe ...

题目没有打错的 应该是条件一里面给了虚拟的

JasmineCute

gmat想考好 发表于 2020-9-7 18:53
答案是C??

是的 是C 条件一给出来求5月1日账户里面的钱