MAGIC SQUARE: Calculate A+B-C
[6482] MAGIC SQUARE: Calculate A+B-C - The aim is to place the some numbers from the list (7, 8, 9, 11, 12, 13, 25, 36, 69, 70, 71, 82, 83) 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: 10 - The first user who solved this task is Nasrin 24 T
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (7, 8, 9, 11, 12, 13, 25, 36, 69, 70, 71, 82, 83) 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: 10
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
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Professional Worrier

David had been extremely anxious for years. It got to the point where his compulsive worrying was ruining his life, so he went to a psychiatrist, who recommended that David hire a professional worrier.
After he'd been working with the specialist for a few months, David's friend John noticed a change. "What happened?" John asked. "You don't worry about anything anymore."
"I hired a professional worrier!" David answered.
"That must cost a fortune," John said.
"Yes, he charges $3,000 a month," David said sheepishly.
"Three thousand dollars! How can you ever afford to pay him?" John exclaimed.
"I don't know," David said. "That's his problem."
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Space nuclear power

In 1965, SNAP 10A, the first nuclear reactor in space, was launched from Vanden berg Air Force Base, Calif. It was activated by a signal from scientists on earth about four hours later, and generated 500 kilowatt-hours of power during its life, providing electrical power for a 1 kgf ion engine. While its ground version lasted 10,000 hours without problems, the orbiting reactor was shut down by an electrical failure in another of the satellite's systems after 45 days in operation. It is still orbiting the earth. SNAP stands for Systems for Nuclear Auxiliary Power. Although the Soviet Union has flown many nuclear reactors in space, the SNAP-10A is the only one flown by the United States.
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