Calculate the number 2100
[5071] Calculate the number 2100 - NUMBERMANIA: Calculate the number 2100 using numbers [9, 4, 9, 1, 39, 880] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 16 - The first user who solved this task is Djordje Timotijevic
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Calculate the number 2100

NUMBERMANIA: Calculate the number 2100 using numbers [9, 4, 9, 1, 39, 880] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 16
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #numbermania
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Petroleum Jelly

One day while doing door-to-door market research, this guy knocks on a door and is greeted by a beautiful young housewife.
"Hello," he starts, "I’m doing some research for a petroleum jelly manufacturer. Have you ever used the product?"
"Yes. My husband and I use it during sex," she answers.
The researcher is taken aback. "Um, er, I admire you for your honesty," he continues. "Can you tell me exactly how you use it?"
"Sure, we put it on the doorknob so the kids can’t get in."    

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Chushiro Hayashi

Born 23 Jul 1920.Japanese astrophysicist who with his coworkers created evolutionary models for stars of mass between 0.01 to 100 times that of the Sun. In 1950, he contributed to the abg (Alpher, Bethe, Gamow) model of nucleosynthesis in the hot big bang. Hayashi pioneered in modeling stellar formation and pre-main sequence evolution along "Hayashi tracks" (1961) downward on the Hertzprung-Russell diagram until stars reach the main sequence. He and Takenori Nakano studied the formation of low-mass, brown dwarf stars. Hayashi also investigated the formation of the solar system and of the earth and its atmosphere. He retired in 1984. He was presented the Bruce Medal in 2004 for lifetime contributions to astronomy.«
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