MAGIC SQUARE: Calculate A-B-C
[4804] MAGIC SQUARE: Calculate A-B-C - The aim is to place the some numbers from the list (10, 11, 12, 13, 25, 26, 28, 38, 39, 41, 61, 68) 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: 23 - 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 (10, 11, 12, 13, 25, 26, 28, 38, 39, 41, 61, 68) 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: 23
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #magicsquare
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Friendship between wom...

Friendship between women: A woman doesn’t come home one night. The next day she tells her husband that she had slept over at a girlfriend's house.
The husband calls his wife's 10 best friends. None of them know anything about it.
Friendship between men: A man doesn’t come home one night. The next day he tells his wife that he had slept over at a friend’s house. The wife calls her husband's 10 best men friends. Eight of them confirm that he had slept over, and two claim that he was still there.
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Safety lamp

In 1816, Sir Humphry Davy's safety lamp was first used in a coal mine. Deadly explosions had been a continual hazard caused by the flammable gas, methane, leaking out of the coal seams ignited by the flame of a miner's lamp. There had been previous attempts by others to make a safety lantern. Davy applied a scientific approach to determine the suitable fineness of wire gauze placed around the flame which would avoid ignition of flammable gas outside. He determined that the holes in the gauze should be less than 1/22 inch in diameter, and that the wire itself should be between 1/40 to 1/60 inch thick. Since the flame changed colour in the presence of methane, it also served as a warning to the miner to take protective action.«[Image: Davy safety lamp, circa 1816.]
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