- 在線時間
- 1504 小時
- 最後登錄
- 20-9-15
- 國民生產力
- 8831
- 附加生產力
- 33165
- 貢獻生產力
- 0
- 註冊時間
- 08-11-1
- 閱讀權限
- 10
- 帖子
- 4484
- 主題
- 167
- 精華
- 1
- 積分
- 46480
- UID
- 226763
|
I got the same answer, based on the target of reaching $100 per 100 chicken, that means, $1 per chicken will be optimal.
In order to achieve that, buying 4 chicken (1 medium and 3 small) would costs $4, i.e. average $1 per chicken as desired.
So, every 4 (1 medium and 3 small) x 25, would give us 100 chicken, that is 25 medium and 75 small.
If try to solve this mathematically, this is not really possible since there are 3 variables and only 2 equations as following:
5a + 3b +1/3c = 100
a + b + c = 100
If a = 0,
then 3b + 1/3c = b + c, so c = 3b
so 0 + b + 3b = 100, i.e. b = 25 and c = 75.
原帖由 fungsir 於 10-5-23 01:18 發表
中雞 3元/ 1隻: 買25隻,要 75元
小雞 1元/ 3隻: 買75隻,要 25元
結果:
買 100隻雞,用了 $100元。
但無大雞食woo |
|