Can you replace the question mark with a number?
[6379] Can you replace the question mark with a number? - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 103 - The first user who solved this task is Nasrin 24 T
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Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 103
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #riddles
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The only cow in a small Kentuc...

The only cow in a small Kentucky town stopped giving milk. The people did some research and found that they could buy a cow just across the state line in Illinois for $200.
They brought the cow from Illinois and the cow was wonderful. It produced lots of milk all of the time, and the people were very happy.
They decided to acquire a bull to mate with the cow to produce more cows like it. They would never have to worry about their milk supply again.
They bought the bull and put it in the pasture with their beloved cow. However, whenever the bull tried to mount the cow, the cow would move away. No matter what approach the bull tried, the cow would move away from the bull and he could not succeed in his quest. The people were very upset and decided to ask the Vet, who was very wise, what to do.
They told the Vet what was happening. "Whenever the bull tries to mount our cow, she moves away. If he approaches from the back, she moves forward. When he approaches her from the front, she backs off. An attempt from the side, she walks away to the other side."
The Vet thought about this for a minute and asked, "Did you by chance, buy this cow in Illinois?"
The people were dumbfounded, since no one had ever mentioned where they bought the cow. "You are truly a wise Vet," they said. "How did you know we got the cow in Illinois?"
The Vet replied with a distant look in his eye, "My wife is from Illinois."
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William Hume-Rothery

Born 15 May 1899; died 27 Sep 1968 at age 69.British metallurgist, internationally known for his work on the formation of alloys and intermetallic compounds. During WW II, he supervised many government contracts for work on complex aluminium and magnesium alloys. He established that the microstructure of an alloy depends on the different sizes of the component atoms, the valency electron concentration, and electrochemical differences. Hume-Rothery rules are an empirical guide to when two metals are sufficiently similar to be completely miscible (form a single phase at all relative concentrations). They are: (1). Atomic radii no more than about 15% different. (2). Pure metals have the same crystal structure. (3). Atoms have similar electronegativities. (4). Atoms have the same valence.
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