问题
单项选择题
A person bought a ticket to a ball game for $15 and later sold the ticket for $60. What was the percent increase in the price of the ticket ?()
A.25%
B.
C.75%
D.300%
E.400%
答案
参考答案:D
解析:
大多数考生会认为百分比无法大于100,而认为这道题无法解,或干脆就把比例搞反,得出的错误结果。实际上百分比是可以大于100的,正如本题所示。根据题意可得该票的价格增加的百分比为
。