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Find number abc

If a5a47 - b71bc = c8785 find number abc. Multiple solutions may exist.

Correct answers: 26

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

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A girl was visiting her blonde...

A girl was visiting her blonde friend, who had acquired two new dogs, and asked her what their names were.
The blonde responded by saying that one was named Rolex and one was named Timex.
Her friend said, 'Whoever heard of someone naming dogs like that?'
'HELLLOOOOOOO......,' answered the blonde. 'They're watch dogs'!

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Augustus De Morgan

Born 27 Jun 1806; died 18 Mar 1871 at age 64. English mathematician and logician who did important work in abstract symbolic logic, the theory of relations, and formulated De Morgan's laws: one is “NOT (A AND B) = (NOT A) or (NOT B)” and the other is “NOT (A OR B) = (NOT A) AND (NOT B)”. These laws continue to be applied in modern proof theory and for software programming. When he defined and introduced the term “mathematical induction” (1838), he gave the process a rigorous basis and clarity that it had previously lacked. He originated the use of the slash to represent fractions, as in 1/5 or 3/7. In Trigonometry and Double Algebra (1849) he gave a geometric interpretation of complex numbers.«[Born in India, De Morgan (according to Macfarlane) De Morgan considered himself to be British, without being specifically English, Scottish, Welsh or Irish.]

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