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Baby Kingdom - 親子王國香港討論區 › 首頁 › 自由講場› Help: Math questions

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Help: Math questions [複製鏈接]

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發表於 15-4-15 21:11 |只看該作者 |倒序瀏覽 |打印

Please help:

Question:

Albert and Bernard just become friends with Cheryl, and they want to know when her birthday is. Cheryl gives them a list of 10 possible dates.

May 15 May 16 May19
June 17 June 18
July 14 July 16
August 14 August 15 August 17

Cheryl then tells Albert and Bernard separately the month and the day of her birthday respectively.

Albert: I don't know when Cheryl's birthday is, but I know that Bernard does not know too.

Bernard: At first I don't know when Cheryl's birthday is, but I know now.
Albert: Then I aslo know when Cheryl's birthday is.

So when is cheryl's birthday?

Thank you for help.

:-D :-D :-D :-D

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親子王國15週年勳章

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發表於 15-4-15 21:20 |只看該作者

回覆：Help: Math questions

今朝有人po過中文版
[今朝睇報紙有條數學題] http://www.baby-kingdom.com/forum.php?mod=viewthread&tid=14757155

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發表於 15-4-15 21:29 |只看該作者

回覆：Help: Math questions

17 June.

However, Cheryl is so troublesome. I won\'t make friends with her lor.

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發表於 15-4-15 21:30 |只看該作者

引用：17+June.However,+Cheryl+is+so+troublesom

原帖由 banbanmm 於 15-04-15 發表
17 June.

However, Cheryl is so troublesome. I won't make friends with her lor.

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發表於 15-4-15 21:32 |只看該作者

banbanmm 發表於 15-4-15 21:29
17 June.

However, Cheryl is so troublesome. I won\'t make friends with her lor.

agree.

:-D :-D :-D :-D

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發表於 15-4-15 21:36 |只看該作者

引用：17+June.However,+Cheryl+is+so+troublesom

原帖由 banbanmm 於 15-04-15 發表
17 June.

However, Cheryl is so troublesome. I won't make friends with her lor.

why 17june?

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發表於 15-4-16 00:35 |只看該作者

JUL 16

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發表於 15-4-16 00:45 |只看該作者

回覆：Help: Math questions

我叔仔尋晚晌whatsapp gp 問左，我答左。

First eliminate May and June, then eliminate 14, then eliminate Aug. finally leave 16 Jul

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發表於 15-4-16 00:47 |只看該作者

引用：Quote:原帖由+banbanmm+於+15-04-15+發表17

原帖由 L0ve 於 15-04-15 發表
why 17june?

First eliminate May and June, then eliminate 14, then eliminate Aug. finally leave 16 Jul

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發表於 15-4-16 00:57 |只看該作者

引用：我叔仔尋晚晌whatsapp gp 問左，我答左。Fi

原帖由 pppsze 於 15-04-16 發表
我叔仔尋晚晌whatsapp gp 問左，我答左。

First eliminate May and June, then eliminate 14, then elimin ...

我今朝答過中文版，同你計法一樣

http://www.baby-kingdom.com/forum.php?mod=viewthread&tid=14757155

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發表於 15-4-16 07:38

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