Find number abc
[2763] Find number abc - If b9bb7 - b9cbc = ca6 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 64 - The first user who solved this task is Djordje Timotijevic
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Find number abc

If b9bb7 - b9cbc = ca6 find number abc. Multiple solutions may exist.
Correct answers: 64
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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The children were lined up in...

The children were lined up in the cafeteria of a Catholic elementary school for lunch. At the head of the table was a large pile of apples. The nun made a note, and posted on the apple tray:
'Take only ONE. God is watching.'
Moving further along the lunch line, at the other end of the table was a large pile of chocolate chip cookies.
A child had written a note, 'Take all you want. God is watching the apples.'
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Pen

In 1809, the first patent was issued in the U.S. for a metallic writing pen was issued to Peregrine Williamson a jeweller of Baltimore, Maryland. The patent title occurs in summary lists in published books that exist after the fire that consumed all the records at the Patent Office on 15 Dec 1836. Williamson's pens were made of steel rolled from wire, a sort of steel quill that would never need cutting to sharpen the nib. His first attempt did not write well for want of flexibility but that was solved by adding two more slits parallel to the main one. He then had a product that eventually sold so well it kept him and a journeyman employed full-time in a profitable business. There are references to steel pens being used in Britain before this patent.«
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