Find number abc
[2874] Find number abc - If 24ac8 + a90c7 = ba41c find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 84 - The first user who solved this task is Adman72 Rocks
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Find number abc

If 24ac8 + a90c7 = ba41c find number abc. Multiple solutions may exist.
Correct answers: 84
The first user who solved this task is Adman72 Rocks.
#brainteasers #math
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What day is it?

Over breakfast one morning, a woman said to her husband, "I bet you don't know what day this is."

"Of course I do," he indignantly answered, getting up from the table and going out the door to the office.

At 10am, the doorbell rang. When the woman opened the door, she was handed a box containing a dozen long-stemmed red roses. At 1pm, a foil-wrapped, two-pound box of her favorite chocolates arrived. Later, a boutique delivered a designer dress.

The woman couldn't wait for her husband to come home. When he did, she exclaimed, "First the flowers, then the chocolates and then the dress! I've never had a more wonderful Groundhog Day in my life!"

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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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