Nutrition

Do you easily solve math problems? This one will keep you up at night

It all started on Sunday April 12, when Kenneth Kong, presenter of the Channel 8 TV channel in Singapore, posted on his Facebook page a math problem that Singaporean students, aged between 13 and 15, had to solve.

Here is the problem that was posed to Singaporean high school students:

“Albert and Bernard have become friends with Cheryl and they want to know her birthday. Cheryl gave them a list of 10 possible dates.
May 15, May 16, May 19
June 17, June 18
July 14, July 16
August 14, August 15, August 17
Cheryl separately and respectively tells Albert and Bernard the month and day of her birthday.
Albert (who knows the month): I don’t know when Cheryl’s birthday is, but I know Bernard doesn’t know either.
Bernard (who knows the day): At first I didn’t know when Cheryl’s birthday was, but now I know.
Albert: Then I also know when his birthday is.
When is Cheryl’s birthday? »

See solution

[HighProtein-Foods.com]

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