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Find number abc

If c7b1a + 6c6c3 = 1bb867 find number abc. Multiple solutions may exist.

Correct answers: 55

The first user who solved this task is Djordje Timotijevic.

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Monday to Sunday ... Sunday to Monday

NY to Chicago = 1,271 km
Chicago to NY = 1,271 km

January to December = 12 months
December to January = 12 months

Ground Floor to 15th Floor = 15 floors
15th Floor to Ground Floor = 15 floors

Monday to Sunday = 6 days
Sunday to Monday = 1 DAY!!

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Julius Lothar Meyer

Died 11 Apr 1895 at age 64 (born 19 Aug 1830). (Julius) Lothar Meyer was a German chemist who discovered the Periodic Law, independently of Dmitry Mendeleyev, at about the same time (1869). However, he did not develop the periodic classification of the chemical elements as thoroughly as Mendeleyev. Meyer trained originally in medicine and chemistry. He examined the effect of carbon monoxide on blood. In 1879, Meyer compared atomic volume to atomic weight. Plotted on a graph, the curve showed the periodicity of the elements. He also established the concept of valency by indicating that a given element combined with a characteristic number of hydrogen atoms, and coined the terms like univalent, bivalent, and trivalent, based on that number.«

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