题目信息
If the price of a certain stock increased by $$\frac{1}{5}$$ during the first month and then decreased by $$\frac{1}{4}$$ during the second month, what was the ratio of the stock price at the end of the two months to the original price?
A:4:5
B:9:10
C:10:9
D:5:4
E:9:5
参考答案及共享解析
共享解析来源为网络权威资源、GMAT高分考生等； 如有疑问，欢迎在评论区提问与讨论
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正确答案：
B:9:10
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