Find number abc
[1948] Find number abc - If a9a91 - ac9b9 = 6c2 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 74 - The first user who solved this task is Djordje Timotijevic
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Find number abc

If a9a91 - ac9b9 = 6c2 find number abc. Multiple solutions may exist.
Correct answers: 74
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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Riding Nun’s

Two nuns are riding their bikes down the back streets of Rome.

One says breathlessly, "I've never come this way before!"

To which the other replies, "It's the cobblestones."

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Eugen Langen

Died 2 Oct 1895 at age 61 (born 9 Oct 1833).German engineer who pioneered in building internal-combustion engines. In 1866 Eugen Langen, who owned a a sugar refining company, financed Nikolaus August Otto (1832-91), developed a more efficient gas engine. The Otto & Langen company produced stationary gas engines (usually powered by coal gas). Otto went on to build, in 1876, the prototype of the so-called Otto-cycle engines used in most modern automobiles, fueled primarily with gasoline, alcohol or benzene. Langen also devised the Wuppertaler suspension railway which opened in 1901. His Schwebebahn (swinging railway) has operated successfully along the Wupper river for almost 100 years. It has survived two world wars and continues to operate profitably and safely today.
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