一個 好難的問題
2007-05-05 6:13 am
A is 20%larger than B,and Bis 30% smaller than C.By what percentage is A larger or smaller than C?
回答 (1)
2007-05-05 6:23 am
✔ 最佳答案
A is 20%larger than B,and Bis 30% smaller than C.By what percentage is A larger or smaller than C? A = (1+20%)B
B = (1 - 30%)C
A = (1+20%)(1 - 30%)C
A = 1.2x0.7C
A = 0.84C
So A is 16% small than C
收錄日期: 2021-04-13 00:25:52
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