Find number abc
[6144] Find number abc - If c7a57 + ac7b2 = 812ab find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 25 - The first user who solved this task is Nasrin 24 T
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Find number abc

If c7a57 + ac7b2 = 812ab find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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Blonde Bet

Bob, a handsome dude, walked into a sports bar around 9:58 PM
He sat down next to a blonde at the bar and stared up at the TV.
The 10:00 PM news was coming on. The news crew was covering a story of a man on a ledge of a large building preparing to jump.
The blonde looked at Bob and said, 'Do you think he'll jump?' Bob says, 'You know, I bet he'll jump.'
The blonde replied, 'Well, I bet he won't.' Bob placed a $20 bill on the bar and said, 'You're on!'
Just as the blonde placed her money on the bar, the guy on the ledge did a swan dive off the building, falling to his death.
The blonde was very upset, but willingly handed her $20 to Bob, saying, 'Fair's fair. Here's your money.'
Bob replied, 'I can't take your money, I saw this earlier on the 6 PM news and so I knew he would jump.'
The blonde replied, 'I saw it too; but I didn't think he'd do it again.'
Bob took the money......
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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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