百分數的問題
回答 (3)
2007-08-30 10:56 pm
Y = X (1 + 10%) = 1.1X
Z = Y (1 + 10%) = 1.1Y = 1.1 (1.1X) = 1.21X
(Z-X)/X x 100% = (1.21X-X)/X x 100% = 0.21 x 100% = 21%
所以Z比X大21%
Z = Y (1 + 10%) = 1.1Y = 1.1 (1.1X) = 1.21X
(Z-X)/X x 100% = (1.21X-X)/X x 100% = 0.21 x 100% = 21%
所以Z比X大21%
2007-08-30 10:55 pm
Y=1.1X
Z=1.1Y
=>Z=1.1(1.1X)
= 1.21X
Answer: Z 比 X 大 21%
Z=1.1Y
=>Z=1.1(1.1X)
= 1.21X
Answer: Z 比 X 大 21%
收錄日期: 2021-04-13 13:11:52
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070830000051KK02819