MAGIC SQUARE: Calculate A*B-C
[7133] MAGIC SQUARE: Calculate A*B-C - The aim is to place the some numbers from the list (1, 2, 4, 5, 6, 8, 42, 43, 44, 46, 67) 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: 3
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (1, 2, 4, 5, 6, 8, 42, 43, 44, 46, 67) 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: 3
#brainteasers #math #magicsquare
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Beware of dog

Upon entering the little country store, the stranger noticed a sign saying "DANGER! BEWARE OF DOG!" posted on the glass door. Inside he noticed a harmless old hound dog asleep on the floor besides the cash register.

He asked the store manager, "Is THAT the dog folks are supposed to beware of?"

"Yep, that's him," he replied.

The stranger couldn't help but be amused. "That certainly doesn't look like a dangerous dog to me. Why in the world would you post that sign?"

"Because," the owner replied, "before I posted that sign, people kept tripping over him."

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DNA

In 1967, the first synthesis of biologically active DNA in a test tube was announced at a press conference by Arthur Kornberg who had worked with Mehran Goulian at Stanford and Robert L. Sinsheimer of MIT. Kornberg chose to replicate the relatively simple DNA chain of the Phi X174 virus, which infects bacteria (a bacteriophage). It has a single strand of DNA only about 5500 nucleotide building blocks long, and with about 11 genes, it was easier to purify without breaking it up. Having isolated the Phi X174 DNA, they used the DNA from E. coli, a common bacterium in the human intestine that could copy a DNA template from any organism. The viral DNA template thus copied was found to be able to infect bacteria - it was error-free, active DNA.*
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