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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (8, 10, 11, 12, 14, 15, 41, 43, 44, 67, 71) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B-C.

Correct answers: 17

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math #magicsquare

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Frederick Fuller Russell

Born 17 Aug 1870; died 29 Dec 1960 at age 90.American scientist who developed the first successful U.S. typhoid fever vaccine. Russell earned his medical degree in 1893 and was commissed in 1898 as first lieutenant and assistant surgeon in the U.S. Army. In summer 1908, the U.S. Army Surgeon General sent him to Europe to study the experience of the British and German armies in anti-typhoid vaccination. In 1909, Major Russell prepared a laboratory the Army Medical Museum for manufacturing vaccine, and vaccinated volunteers, the first of whom came from the museum and the medical school. By the end of 1910, 10,841 volunteers had been vaccinated. This was made compulsory for military personnel the next year. The reduction in the incidence of the disease was dramatic.«

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