a is 70% less than c.
find a:b:c
更新1:
但係你咁樣計~ a:b:c = 20:25:34 果條係mc,冇e個答案
但係你咁樣計~ a:b:c = 20:25:34 果條係mc,冇e個答案
收錄日期: 2021-04-23 16:41:30
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070108000051KK02874