Find number abc
[2567] Find number abc - If caa24 - c27bc = 38ab find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 69 - The first user who solved this task is Roxana zavari
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Find number abc

If caa24 - c27bc = 38ab find number abc. Multiple solutions may exist.
Correct answers: 69
The first user who solved this task is Roxana zavari.
#brainteasers #math
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First Date

A young man called his mother and announced excitedly that he had just met the woman of his dreams. Now what should he do?
His mother had an idea: "Why don't you send her flowers, and on the card invite her to your apartment for a home-cooked meal?"
He thought this was a great strategy, and a week later, the woman came to dinner. His mother called the next day to see how things had gone.
"I was totally humiliated," he moaned. "She insisted on washing the dishes."
"What's wrong with that?" asked his mother.
"We hadn't started eating yet."

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Portrait camera

In 1841, Austrian inventor Friedrich Voigtländer began selling the world's first purpose-built portrait camera. Since a person wanting a portrait would have to hold a pose for the time required for a successful exposure, it was critically important to be able to do that in the shortest time—which depends on the lens. Voigtländer incorporated a rapid double-combination lens designed according to the calculations of Viennese mathematician Josef Max Petzval. What used to take 20-30 minutes could now be done in two. The brass-bodied camera was shaped somewhat like a Lava Lamp bottle on its side. It made circular daguerreotypes about 3½-in (9cm) diam. The Voigtländer family business was started by his father in Vienna in 1756, making scientific instruments.«
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