Find number abc
[5387] Find number abc - If ac5a1 + b52c9 = 155b9c find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 40 - The first user who solved this task is Djordje Timotijevic
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Find number abc

If ac5a1 + b52c9 = 155b9c find number abc. Multiple solutions may exist.
Correct answers: 40
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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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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Johann Friedrich Pfaff

Born 22 Dec 1765; died 21 Apr 1825 at age 59.German mathematician who proposed the first general method of integrating partial differential equations of the first order. Pfaff did important work on special functions and the theory of series. He developed Taylor's Theorem using the form with remainder as given by Lagrange. In 1810 he contributed to the solution of a problem due to Gauss concerning the ellipse of greatest area which could be drawn inside a given quadrilateral. His most important work on Pfaffian forms was published in 1815 when he was nearly 50, but its importance was not recognised until 1827 when Jacobi published a paper on Pfaff's method.«
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