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Find number abc

If 7599b - 2cbb6 = 555ba find number abc. Multiple solutions may exist.

Correct answers: 19

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

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Undercover Detective

A tourist asks a man in uniform, "Are you a policeman?"
"No, I am an undercover detective."
"So why are you in uniform?"
"Today is my day off."

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Charles Sanders Peirce

Born 10 Sep 1839; died 19 Apr 1914 at age 74. American mathematician, logician and philosopher who is noted for his work on the logic of relations and on pragmatism as a method of research. He was the first modern experimental psychologist in the Americas, the first metrologist to use a wave-length of light as a unit of measure, the inventor of the quincuncial projection of the sphere, the first known conceiver of the design and theory of an electric switching-circuit computer, and the founder of “the economy of research.” He is the only system-building philosopher in the Americas who has been both competent and productive in logic, in mathematics, and in a wide range of sciences. He was the son of Harvard mathematician Benjamin Peirce.

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