Find number abc
[7415] Find number abc - If 7b2c3 - ac210 = 1a083 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 2
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Find number abc

If 7b2c3 - ac210 = 1a083 find number abc. Multiple solutions may exist.
Correct answers: 2
#brainteasers #math
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50-50 partners

A very successful businessman had a meeting with his new son-in-law. "I love my daughter, and now I welcome you into the family," said the man. "To show you how much we care for you, I'm making you a 50-50 partner in my business. All you have to do is go to the factory every day and learn the operations."

The son-in-law interrupted. "I hate factories. I can't stand the noise."

"I see," replied the father-in-law. "Well then you'll work in the office and take charge of some of the operations."

"I hate office work," said the son-on-law. "I can't stand being stuck behind a desk all day."

"Wait a minute," said the father-in-law. "I just make you half- owner of a moneymaking organization, but you don't like factories and won't work in a office. What am I going to do with you?"

"Easy," said the young man. "Buy me out."

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Oldest fossils

In 1977, American paleontologist Elso S. Barghoorn of Harvard announced the discovery of Pre-Cambian spherical one-celled algae microfossils (named Eobacterium) 3.4 billion years old, earth's earliest life forms. Barghoorn, with J. William Schopf, studied the ancient chert (a flintlike or quartz-like rock) of the Fig Tree formation in Transvaal, South Africa. Rubidium and strontium ratios in the chert are used to establish the age of the rock, and the fossils contained in it. The fossils are a kind of Prokaryotes, organisms with simple cell wall containing organic chemicals, and examples of cell division are visibile in the remains. A huge number of varieties exist today. They all produce oxygen; and, in the Precambrian period, began to change the earth's primoidal reducing atmosphere to the oxygenated one we have today.
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