Find number abc
If bac6c - 840a2 = bca5 find number abc. Multiple solutions may exist.Correct answers: 63
The first user who solved this task is Sanja Šabović.
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Meccano patentIn 1901, the first application for a patent for Meccano was submitted, as "Improvements in toy or educational devices for children and young people. Known at first as "Mechanics Made Easy," this invention of Frank Hornby became a worldwide success. The British patent (No. 587) showed the familiar perforated strips, pulleys, axles, brackets and clips assembled as a model railway crane with tracks that had operating points. The patent was published on 30 Nov 1901.« |