Albert and Bernard just friends with Cheryl and they wanted to know his birthday. Cheryl then give 10 options, namely:

May 15, 16 Mei, May 19
June 17, 18 Juni
July 14, 16 of July,
August 14, 15 August, and August 17

Cheryl later told Albert and Bernard separately on the month and date of his birthday sequentially.

Albert and Bernard then made a statement:

Albert: I do not know when Cheryl's birthday, but I'm sure Bernard does not know well.

Bernard: At first I did not know Cheryl's birthday, but I now know.

Albert: It means I also know Cheryl's birthday.

So when Cheryl's birthday?

1

Jawapan

Jawapan Paling Bijak!
  • Pengguna Brainly
2015-06-15T17:29:55+08:00

Ini Jawapan Diperakui

×
Jawapan diperakui mengandungi maklumat yang boleh dipercayai dan diharapkan yang dijamin dipilih dengan teliti oleh sepasukan pakar. Brainly mempunyai berjuta-juta jawapan berkualiti tinggi, semuanya disederhanakan dengan teliti oleh ahli komuniti kami yang paling dipercayai, tetapi jawapan diperakui adalah terbaik di kalangan terbaik.
The possibility of beginning is 15 Mei, May 16, May 19, June 17, June 18, July 14, July 16, August 14, August 15 and August 17.

When Cheryl's birthday is June 18 or May 19, then Bernard notified immediately know the exact figures for the numbers 18 and 19 are not contained in the other months.

The rest likely May 15, May 16, June 17, July 14, July 16, August 14, August 15 and August 17.

When Albert was told that Cheryl is the birthday month of May or June, then Albert will not be able to say, "I know that Bernard does not know, too." It proves that Albert told that Cheryl's birthday in July or August.

Now, the remaining possibility is 14 Juli, July 16, August 14, August 15 and August 17.

Bernard told the date. From the words of Albert, Bernard knew that Albert was told in July or August. When Bernard told the 14th, then he will still be confused because on July 14 and August 14. In fact he said, "But, I know". Bernard means not told that the date is 14.

At this stage, Bernard already knew that birthday on July 16. Why, Cheryl has told Bernard that Anggal birth is 16.

2 5 2