Find number abc
[6738] Find number abc - If 7a648 - b6647 = 45cca find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 29 - The first user who solved this task is Nasrin 24 T
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Find number abc

If 7a648 - b6647 = 45cca find number abc. Multiple solutions may exist.
Correct answers: 29
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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Two Old Drunks

Two old drunks are sitting in a bar when the first one says, "Ya know, when I was thirty and got an erection, I couldn't bend it, even using both hands.
By the time I was forty, I could bend it about ten degrees if I tried really hard.
By the time I was fifty, I could bend it about forty five degrees, no problem.
I'm gonna be sixty next week, and now I can bend it in half with just one hand."
"So," says the second drunk, "what's your point?"
"Well, I'm just wondering how much stronger I'm gonna get."
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First refracting telescope

In 1608, Johannes Lippershey (c.1570-c.1619) demonstrated a new invention, the first optical (refracting) telescope - prototype of the modern telescopes - to the Netherlands States General. Lippershey was a lens grinder who furnished spectables. An apprentice discovered that - by separating both a long-focus lens and a short-focus lens in front of the eye - distant objects appeared closer. Lippershey mounted lenses in tubes, applied for a patent in 1608, and also offered them for sale to the Dutch government, which appreciated their military value. When Galileo heard of the device, he made a similar arrangement and used it to study the heavens. It was named a "telescope" by a guest at an outdoor banquet 14 Apr 1611 honouring Galileo, where he demonstrated it to the assembly.«
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