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# MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (7, 9, 12, 19, 21, 24, 40, 42, 45, 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.
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #magicsquare
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### School absences

THESE ARE ACTUAL SCHOOL ABSENCES (SUPPOSEDLY) FROM PARENTS -- INCLUDING SPELLING.

*My son is under a doctor's care today and should not take P.E. today. Please execute him.

*Please excuse Lisa for being absent. She was sick and I had her shot.

*Dear School: Please ekscuse John for being absent on Jan. 28, 29, 30, 31, 32, and also 33.

*Please excuse Gloria from Jim today. She is administrating.

*Please excuse Roland frrom P.E. for a few days. Yesterday, he fell out of a tree and misplaced his hip.

*John has been absent because he had two teeth taken out of his face.

*Carlos was absent yesterday because he was playing football. He was hurt in the growing part.

*Megan could not come to school today because she has been botheres by very close veins.

*Chris will not be in school because he has an acre in his side.

*Please excuse Ray Friday from school. He has very loose vowels.

*Please excuse Tommy for being absent yesterday. He had diarrhea and his boots leak.

*Irving was absent yesterday because he missed his bust.

*Please excuse Jim for being. It was his father's fault.

*I kept Billie home because she had to go Christmas shopping because I don't know what size she wear.

*Please excuse Jennifer for missing school yesterday. We forgot to get the Sunday paper off the porch and when we found it Monday, we thought it was Sunday.

*Sally won't be in school a week from Friday. We have to attend her funeral.

*My daughter was absent yesterday because she was tired. She spent a weekend with the Marines.

*Please excuse Jason for being absent yesterday. She was in bed with gramps.

*Gloria was absent yesterday as she was having a gangover.

*Please excuse brenda, she has been sick and under the doctor.

*Maryann was absent December 11-16, because she had a fever, sore throat, headache, and upset stomach. Her sister was also sick, fever and sore throat, her brother had a low grade fever and ached all over. I wasn't the best, either, sore throat and fever. There must be something going around, her father even got hot last night.

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### W. Edwards Deming

Born 14 Oct 1900; died 20 Dec 1993 at age 93.W(illiam) Edwards Deming was an American statistician, the father of "Total Quality Management." After WW II, he contributed to Japan's economic recovery by recommending statistical methods of quality control in industrial production. His method embraced carefully tallying product defects, examining their causes, correcting the problems, and then tracking the results of these changes on subsequent product quality. In his career before the war, he had developed statistical sampling techniques that were first used in the 1940 U.S. census. From the 1980's in the U.S. Deming taught quality control through the statistical control of manufacturing processes for companies such as Ford, Xerox, and GM.«
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