Maths of the percentage - some difficult questions - (15)
It is given that 5a=4b. What percentage of b is a? What percentage of a is b?
Maths of the percentage - some difficult questions - (15)
2006-11-17 2:47 am
回答 (2)
2006-11-17 3:38 am
✔ 最佳答案
It is given that 5a=4b. What percentage of b is a?
a=(4/5)b
4/5*100%
=80%
What percentage of a is b?
b=(5/4)a
5/4*100%
=125%
2006-11-17 2:51 am
5a=4b
a=4b/5
a=80% of b
4b=5a
b=5a/4
b=125% of a
a=4b/5
a=80% of b
4b=5a
b=5a/4
b=125% of a
收錄日期: 2021-04-25 17:11:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061116000051KK02873