MAGIC SQUARE: Calculate A*B-C
[5388] MAGIC SQUARE: Calculate A*B-C - The aim is to place the some numbers from the list (11, 12, 15, 17, 18, 21, 36, 37, 40, 59, 87) 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: 24 - 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 (11, 12, 15, 17, 18, 21, 36, 37, 40, 59, 87) 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: 24
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #magicsquare
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On their 40th wedding annivers...

On their 40th wedding anniversary and during the banquet celebrating it, Tom was asked to give his friends a brief account of the benefits of a marriage of such long duration.
"Tell us Tom, just what is it you have learned from all those wonderful years with your wife?"
Tom responds, "Well, I've learned that marriage is the best teacher of all. It teaches you loyalty, forbearance, meekness, self-restraint, forgiveness – and a great many other qualities you wouldn't have needed if you'd stayed single."
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Cotton cultivator

In 1874, an “Improvement in Cotton-Cultivators” was issued a U.S. patent for its black American inventor, Edward H. Sutton, of Edenton, north Carolina (No. 149,543). A horizontal beam, mounted on wheels, had a harness coupling at the front, and carried three blades. Teeth on the forward blade were intended to loosen and pulverise the soil, followed by two blades to cut weeds. The middle of the three blades was arranged to “be rotated in such a manner as to cut the weeds or thin out the growing cotton which is beyond the reach of the stationary blade” at the back. Adjustment of the middle blade was made using a spring-loaded lever attached from to one of the operator's handles behind the plough. The short patent application was made on 10 Feb 1874, and issued less than two months later.«[Image: detail from patent drawing, showing blades.]
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