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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (1, 2, 3, 4, 8, 10, 12, 13, 14, 20, 32, 44) 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: 2

#brainteasers #math #magicsquare

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Hearing Aid

A man was telling his neighbor, "I just bought a new hearing aid. It cost me four thousand dollars, but it's state of the art. It's perfect."
"Really," answered the neighbor . "What kind is it?"
"Twelve thirty."

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First ballpoint pen

In 1945, the first ball point pen in the U.S. went on sale at Gimbels Department Stores for $12.95. In Jun 1945, Chicago businessman Milton Reynolds, during a visit to Buenos Aires, Argentina, sawLaszlo Biro’spen in a store, realized the pen’s sales potential and bought a few as samples. He returned to the U.S., anddesigned a copy in four months. He began production of his Reynolds’ Rocket pen, ignoring the patent rights of the Argentine manufacturer, Eversharp Co. On the first day of sale, $100,000 worth of his pen were sold. The initial success of Reynolds’ ballpoint pen as a fad did not last. It leaked and was unreliable. By 1948, the price fell below 50 cents. By 1951, his enterprise had failed.«

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