MAGIC SQUARE: Calculate A-B+C
[5608] MAGIC SQUARE: Calculate A-B+C - The aim is to place the some numbers from the list (7, 8, 10, 11, 14, 16, 17, 25, 27, 28) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B+C. - #brainteasers #math #magicsquare - Correct Answers: 20 - The first user who solved this task is Djordje Timotijevic
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MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (7, 8, 10, 11, 14, 16, 17, 25, 27, 28) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B+C.
Correct answers: 20
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #magicsquare
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Saint George and the Dragon

April 23rd is St. George’s Day, named after St. George, the patron saint of England.

A weary traveler in 18th century England, hungry and tired, approached a roadside inn with a sign that read: "Saint George and the Dragon."

He knocked on the door. The innkeeper's wife poked her head out of a window.

"Any chance for a bite to eat?" he inquired.

The woman eyed his ragged, filthy clothes and yelled, "No!"

"May I have a pint of ale?"

"No!" she yelled back.

"Can I at least rest in your stable?"

"No!" she yelled once more.

The traveler tried again, "Could I kindly...?"

"What is it now?" the woman snapped, cutting him off.

"Would it be possible," he asked, "to have a chat with George?"

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Joseph Black

Died 6 Dec 1799 at age 71 (born 16 Apr 1728). Scottish chemist and physicist who experimented with "fixed air" (carbon dioxide), discovered bicarbonates and identified latent heat. He lectured in chemistry, anatomy at the University of Glasgow, while also a physician. From heated magnesia alba (magnesium carbonate), Black collected a gas, carbon dioxide, different from common air. He published Experiments Upon Magnesia Alba, Quicklime, and Some Other Alcaline Substances (1756). Carbon dioxide was also released by fermentation, respiration, and burning charcoal so he assumed it was in the atmosphere. He also observed that ice melts without change of temperature, due to heat that becomes "hidden" - latent heat - and determined "specific heat" for heated of materials.[DSB gives date of death 6 Dec 1799. EB gives 10 Nov 1799.]
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