In the following circles, th...
[2779] In the following circles, th... - In the following circles, the four outer numbers are used to calculate the number in the middle. Can you figure out the rule to determine what number should replace the question mark in the third circle? - #brainteasers #math #riddles - Correct Answers: 108 - The first user who solved this task is Jakubovski Vladimir
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In the following circles, th...

In the following circles, the four outer numbers are used to calculate the number in the middle. Can you figure out the rule to determine what number should replace the question mark in the third circle?
Correct answers: 108
The first user who solved this task is Jakubovski Vladimir.
#brainteasers #math #riddles
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The Preacher's Teeth

A minister had all of his remaining teeth pulled out. New dentures were being made.

  • The first Sunday, he only preached 10 minutes.
  • The second Sunday, he preached only 20 minutes.
  • On the third Sunday, he preached 1 hour 25 minutes.

When asked about this by some of the congregation, he responded this way:

“The first Sunday, my gums were so sore it hurt to talk. The second Sunday, my new dentures were hurting me a lot. The third Sunday, I accidentally grabbed my wife's dentures... and I couldn't shut up.”

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Lyman C. Craig

Died 7 Jul 1974 at age 68 (born 12 Jun 1906).Lyman Creighton Craig was an American chemist who developed the counter-current distribution (CCD) method. Within five years of earning his Ph.D., he had designed and built a microdistillation apparatus (1936). Wartime research on antimarial drugs required identification of microgram amounts of an organic compound in a mixture, for which he devised a laboratory technique based on the distribution coefficient. He soon developed the CCD method for fractionation of complex mixtures with an apparatus that could simultaneously accomplish 20 quantitative extractions in a single step. A notable separation, from a difficult mixture, was the isolation and purified parathormone, the active principle of the parathyroid gland, achieved in 1960 with his colleagues. Craig also designed several other significant instruments, including his rotary evaporator, among others.«
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