F.2 maths Rate and Ratio~~10點

2010-10-06 10:04 pm
1. Peter shares stamps with Ann in the ratio 1:2 . Ann shares her stamps with her brother in the ratio 3:2. Her brother gets 8 stamps. How many stamps are there in the beginning?

回答 (1)

2010-10-06 10:20 pm
✔ 最佳答案

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2010-10-06 20:28:03 補充:
首先謝謝你選我的答案為最佳答案。
用8除5分之2的原因是這是用部分求全部的方法(小學學分數除法時教的)。
因為Ann's brother有8 stamps 即佔全部的 5分之2,所以必須時 8除5分之2 而不是5分之2除8。
如有問題歡迎繼續提出。
參考: My Maths knowledge


收錄日期: 2021-04-13 17:35:02
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