Find number abc
[7080] Find number abc - If 30843 - a0a4c = 20c9b find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 18 - The first user who solved this task is Nasrin 24 T
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Find number abc

If 30843 - a0a4c = 20c9b find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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Passing An Exam

Three patients in a mental institution prepare for an examination given by the head psychiatrist. If the patients pass the exam, they will be free to leave the hospital. However, if they fail, the institution will detain them for five years.
The doctor takes the three patients to the top of a diving board looking over an empty swimming pool, and asks the first patient to jump.
The first patient jumps head first into the pool and breaks both arms.
Then the second patient jumps and breaks both legs.
The third patient looks over the side and refuses to jump. "Congratulations! You're a free man. Just tell me why didn't you jump?" asked the doctor.
To which the third patient answered, "Well Doc, I can't swim!"
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Carl Auer, Freiherr von Welsbach

Born 1 Sep 1858; died 4 Aug 1929 at age 70.Carl Auer Freiherr (baron) von Welsbach was an Austrian chemist, physicist and engineer whose invention of the gas mantle greatly improved the brightness of light that could be obtained from gas lamps. While doing flame tests to examine the spectrum of certain rare earth compounds, he observed the small beads of test material on a platinum wire became white-hot and incandescent. He then had the idea to soak cotton webbing with a solution of the salts, then burn out the cotton leaving a matrix of the compound. His experiments began with slightly promising results with lanthanum oxide, then a mixture with magnesia. He also tried zirconium oxides and others before adding thorium oxide which made commercially viable mantles. His invention was adopted around the world wherever manufactured gas was available, meaning he had a profitable business improving and manufacturing them.«
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