GMAT数学题求教Q19:A total of $60,000 was invested for one year.Bu

GMAT数学题求教
Q19:
A total of $60,000 was invested for one year.But of this amount earned simple annual interest at the rate of x percent per year,and the rest earned simple annual interest at the rate of y percent per year.If the total interest earned by the $60,000 for that year was $4,080,what is the value of
(1)\x05 x = (3/4) y
(2)\x05The ratio of the amount that earned interest at the rate of x percent per year to the amount that earned interest at the rate of y percent per year was 3 to 2.
\x05
A.Statement (1) ALONE is sufficient,but statement (2) alone is not sufficient.
B.Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient.
C.BOTH statements TOGETHER are sufficient,but NEITHER statement ALONE is sufficient.
D.EACH statement ALONE is sufficient.
E.Statements (1) and (2) TOGETHER are NOT sufficient.
题目没看懂.怎么年利润又是X又是Y的 求翻译

题目就是说一共60000元投资,其中一部分的年利率是x%,剩下的是y%,然后已知利息是4080元,求x是多少?
（1）你明白的 （2）是说投资利率为x的和y 的比例是3:2
A：只有条件（1）就足够了求出x,但是只有（2） 的话是不够的
B：只有条件（2）就足够了,但是只有1的话是不够的
C：单独的1和2 都能够求出x
D：1和2的条件都不够