among the stamps collected by Winson, 40% are local stamps and the rest are
overseas stamps. if there are 70 more overseas stamps, how many stamps has
Winson collected in total?
一題F.1數學問題
2012-12-25 9:24 pm
回答 (1)
2012-12-25 10:01 pm
✔ 最佳答案
Let L be local stamp, O be oversea stamp;L+O=Total collected stamps=T;
O-L=70;
60%T-40%T=70;
20%T=70;
T=350stamps
收錄日期: 2021-04-13 19:12:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20121225000051KK00091