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Calculate the number 3939

NUMBERMANIA: Calculate the number 3939 using numbers [1, 4, 6, 6, 13, 989] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 13

The first user who solved this task is Nasrin 24 T.

#brainteasers #math #numbermania

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Adolf Meyer

Born 13 Sep 1866; died 17 Mar 1950 at age 83.Swiss-American psychiatrist (1900-40), whose teaching and influential work has become a part of psychiatric theory and practice in English-speaking countries. Already trained in neuroanatomy and neurophysiology when he emigrated to the U.S. (1892), from working at mental institutions, he began to attribute the disorder in mental illness not to brain pathology, but to a personality dysfunction. He recognized social environment as an influence in mental disorders. Throughout his years at Johns Hopkins University as professor of psychiatry (1910-41), he taught that in the diagnosis and treatment of mental illness, the patient must be evaluated as a whole person.

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