Find number abc
[6565] Find number abc - If b78aa - 71a80 = c6c7a find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 24 - The first user who solved this task is Nasrin 24 T
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Find number abc

If b78aa - 71a80 = c6c7a find number abc. Multiple solutions may exist.
Correct answers: 24
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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How You Made Money

A young man asked an old rich man how he made his money.
The old guy fingered his worsted wool vest and said, "Well, son, it was 1932. The depth of the Great Depression. I was down to my last nickel.
"I invested that nickel in an apple. I spent the entire day polishing the apple and, at the end of the day, I sold the apple for ten cents.
"The next morning, I invested those ten cents in two apples. I spent the entire day polishing them and sold them at 5:00 pm for 20 cents. I continued this system for a month, by the end of which I'd accumulated a fortune of $1.37."
"And that's how you built an empire?" the boy asked.
"Heavens, no!" the man replied. "Then my wife's father died and left us two million dollars."
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Deuterium

In 1933, Ernest Rutherford suggested the names diplogen for the newly discovered heavy hydrogen isotope and diplon for its nucleus. He presented these ideas in the Discussion on Heavy Hydrogen at the Royal Society. For ordinary hydrogen, the lightest of the atoms, having a nuclues of a sole proton, he coined a related name: haplogen. (Greek: haploos, single; diploos, double.) In 1931, Harold Urey had discovered small quantities of atoms of heavy hydrogen wherever ordinary hydrogen occurred. The mass of its nucleus was double that of ordinary hydrogen. This hydrogen-2 is now called deuterium, as named by Urey (Greek: deuteros, second). Its nucleus, named a deuteron, has a neutron in addition to a proton.[ref: Proc. Roy. Soc. A, vol. 144 (1934)]
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