School complex task became a hit online

Gained extraordinary popularity in the web mathematical problem, which is published on his Facebook page Singaporean broadcaster Kenneth Kong. A new online edition of the virus called the attention of Mashable.

For four days recording Kong shared more than five million users Facebook. Internet users excited the complexity of the task, as well as TV presenter remark to the effect that it is designed for fifth graders.

Condition of the problem is as follows.

Albert and Bernard have just met with Cheryl and wanted to know when her birthday. Cheryl gave them a list of ten possible dates:

- May 15, May 16, May 19;

- June 17, June 18;

- July 14, July 16;

- August 14 August 15 August 17.

Then Cheryl said Albert, in what month she was born, and Bernard - a number. After that, between men following conversation took place.

- I do not know when Cheryl’s birthday, but I know that Bernard does not know this - said Albert.

- At first I did not know when Cheryl’s birthday, but now I know - Bernard said.

- And now I know when Cheryl was born - said Albert.

So when Cheryl’s birthday?

Recording on page Kenneth Kong attracted over a thousand comments and widespread in other blogs, as well as in the media. Many participants in the discussion recognized that feel too stupid because they can not solve the problem for pupils of the fifth class.

However, as it turned out two days later, the problem was not the regular school, and the Contest. In addition, it was designed for 14-year olds. This was reported by representatives of the organization Kong SASMO (Singapore and Asean Schools Math Olympiads). TV presenter himself admitted that he even quarreled with his wife on the basis of the discussion of this problem.

15 April 2015

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