In 1980, the cost ofp pounds of potatoes was d dollars. In 1990, the cost of 2p

游客2024-01-12  17

问题 In 1980, the cost ofp pounds of potatoes was d dollars. In 1990, the cost of 2p pounds of potatoes was d/2 dollars. By what percent did the price of potatoes decrease from 1980 to 1990?

选项 A、25%
B、50%
C、75%
D、100%
E、400%

答案 C

解析
转载请注明原文地址:https://tihaiku.com/zcyy/3356463.html
最新回复(0)