MAGIC SQUARE: Calculate A+B-C
[6854] MAGIC SQUARE: Calculate A+B-C - The aim is to place the some numbers from the list (7, 9, 12, 13, 14, 18, 22, 24, 28, 42) 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: 13 - 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, 9, 12, 13, 14, 18, 22, 24, 28, 42) 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: 13
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
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Before

A sixth grade class is doing some spelling drills. The teacher asks Tommy if he can spell 'before.' He stands up and says, "Before, B-E-P-H-O-R."

The teacher says, "No, that's wrong. Can anyone else spell before?"

Another little boy stands up and says, "Before, B-E-F-O-O-R."

Again the teacher says, "No, that's wrong." The teacher asks, "Little Johnny, can you spell 'before'?"

Little Johnny stands up and says, "Before, B-E-F-O-R-E."

"Excellent Johnny, now can you use it in a sentence?"

Little Johnny says, "That's easy. Two plus two be fore."

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Jeremias B. Richter

Born 10 Mar 1762; died 4 Apr 1807 at age 45.Jeremias Benjamin Richter was a German chemist who discovered the law of equivalent proportions. He studied chemistry in his spare time while in the Prussian army (1778-1785) and afterwards while earning a Ph.D. in mathematics (1789). Richter was much influenced by Immanuel Kant, whose lectures he may have attended, in the contention that science is applied mathematics. Richter looked for mathematical relationships in chemisty, convinced that substances reacted with each other in fixed proportions. He showed such a relationship when acids and bases neutralize to produce salts (1791). Thus he was the first to establish stoichiometry, which became the basis of quantitative chemical analysis. He died of tuberculosis at age 45 years.
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