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There is a certain family wi...

There is a certain family with both girl and boy children. Each of the boys has the same number of brothers as he has sisters. Each of the girls has twice as many brothers as she has sisters. How many kids are there in this family?

Correct answers: 49

The first user who solved this task is Thinh Ddh.

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SOS

In 1904, the code “CQD” became effective as the first international radio distress signal. It was established on 7 Jan 1904 by the Marconi Company. “CQ” had been in use on English landlines as a code for a general call to “all stations.” The “D” was added to made the code for a distress call. It didn't last long. Two years later, “SOS” was specified in a document signed on 3 Nov 1906at the second International Wireless Telegraph Convention in Berlin, by representatives of 27 nations. “SOS” was to supercede “CQD” effective in Jul 1908.

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