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Find number abc

If 2c9bc + 47976 = 7388a find number abc. Multiple solutions may exist.

Correct answers: 28

The first user who solved this task is Nasrin 24 T.

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A man was telling his neighbor...

A man was telling his neighbor, "I just bought a new hearing aid. It cost me four thousand dollars, but it's state of the art. It's perfect."
"Really," answered the neighbor . "What kind is it?"
"Twelve thirty."

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Ball point pen

In 1943, Laszlo Biro filed for a British patent (No. 564172) on a practical ball point pen with quick-drying ink. Biro was a journalist, in 1938, in Budapest (also sculptor and hypnotist) when he took out a Hungarian patent for his first design of the pen. In 1940, he escaped the Nazis by going via Paris to Buenos Aires, Argentina. There a British entrpreneur, Henry Martin, saw Biro’s pen and realized its value for air crews making high altitude navigational calculations. It could write blot-free, unaffected by low or changing atmospheric pressure. Martin bought the rights and began small scale production of ballpoint pens for the RAF. In 1945, the Eterpen Co in Buenos Aires began commercial production.«

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