MATH F.1

2008-06-12 2:50 am
if number a increases by 25%,it is equal to number b .find the percentage of the original value of a to b.

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回答 (1)

2008-06-12 2:55 am
✔ 最佳答案
a x 1.25 = b

a / b = 1 / 1.25 = 80%
參考: SELF


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