MAGIC SQUARE: Calculate A+B-C
[6482] MAGIC SQUARE: Calculate A+B-C - The aim is to place the some numbers from the list (7, 8, 9, 11, 12, 13, 25, 36, 69, 70, 71, 82, 83) 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: 10 - The first user who solved this task is Nasrin 24 T
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (7, 8, 9, 11, 12, 13, 25, 36, 69, 70, 71, 82, 83) 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: 10
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
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Old Mrs. Pierpoint

Worried that they hadn't heard anything for days from the widow in the apartment next door, the mother said to her son, "Tony, would you go next door and see how old Mrs. Pierpoint is?"

A few minutes later, Tony returned.

"Well, is she all right?" asked the mother.

"She's fine, but she's rather annoyed with you," remarked Tony.

"At me?" the mother exclaimed. "Whatever for?"

Tony replied, "Mrs. Pierpoint said it's none of your business how old she is."

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Karl George Christian von Staudt

Died 1 Jun 1867 at age 69 (born 24 Jan 1798).German mathematician who developed the first complete theory of imaginary points, lines, and planes in projective geometry. His early work was on determining the orbit of a comet and, based on this work, he received his doctorate. He showed how to construct a regular inscribed polygon of 17 sides using only compasses. He turned to projective geometry and Bernoulli numbers (discovered by Jacob Bernoulli). An important work on projective geometry, Geometrie der Lage was published in 1847. It was the first work to completely free projective geometry from any metrical basis. He also gave a geometric solution to quadratic equations.
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