题目
The price of a stock decreased by 20 percent and then increased by x percent. x < 25.
Quantity A
Final price of the stock after the increase
Quantity B
Initial price of the stock before the decrease
选项
C.The two quantities are equal.
D.The relationship cannot be determined from the information given.
解析
答案是B。
设初始价格为 a
若涨幅(x)为25%,则 x × 0.8 × 1.25 = x
→ 价格会回到初始值。但由于 x < 25,说明价格上涨后的最终价格
必然低于下跌前的股票初始价格。