MATH!RE5
2009-11-17 5:52 am
After A increases by 25% ,it equals B.What percentage of B is the original value of A ?
回答 (2)
2009-11-17 6:02 am
✔ 最佳答案
A * (1+25%) = B1.25A = B
A = B / 1.25
A = B * 1/1.25
A = B * 0.8
A = B * 80%
Answer :80%
2009-11-17 6:00 am
80%........................
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