MAGIC SQUARE: Calculate A-B+C
[3741] MAGIC SQUARE: Calculate A-B+C - The aim is to place the some numbers from the list (15, 16, 17, 18, 26, 27, 28, 52, 64, 65, 66, 89) 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: 31 - The first user who solved this task is On On Lunarbasil
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MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (15, 16, 17, 18, 26, 27, 28, 52, 64, 65, 66, 89) 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: 31
The first user who solved this task is On On Lunarbasil.
#brainteasers #math #magicsquare
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Final Exam

A college teacher reminds her class of tomorrow's final exam. 'Now class, I won't tolerate any excuses for you not being here tomorrow. I might consider a nuclear attack or a serious personal injury, illness, or a death in your immediate family, but that's it, no other excuses whatsoever!' 

A smart-ass student in the back of the room raised his hand and asked, 'What would you say if tomorrow I said I was suffering from complete and utter sexual exhaustion?'
The entire class is reduced to laughter and snickering. When silence was restored, the teacher smiled knowingly at the student, shook her head and sweetly said, 'Well, I guess you'd have to write the exam with your other hand.'

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Polio virus

In 1955, American investigators Carlton Schwerdt and F.L. Schaffer crystallized the polio virus. This was the first animal virus to be obtained in crystalline form. (The first plant virus, tobacco mozaic virus, had been crystallized in 1935 by W.M. Stanley.) Each virus crystal is composed of many thousands of virus particles. Virus preparations pure enough to crystallize usually provide the best material for chemical studied. This was used to split the polio virus into infectious and non-infectious parts. Their research laid the groundwork for the polio vaccine.(Reference: Proc. Natl. Acad. Sci. 41:1020-1023)
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