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