MAGIC SQUARE: Calculate A+B-C
[5965] MAGIC SQUARE: Calculate A+B-C - The aim is to place the some numbers from the list (13, 14, 16, 17, 21, 22, 23, 24, 30, 66, 80) 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: 20 - 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 (13, 14, 16, 17, 21, 22, 23, 24, 30, 66, 80) 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: 20
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
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The trick...

A little boy greeted his grandmother with a hug and said, "I'm so happy to see you, Grandma. Now maybe Daddy will do the trick he has been promising us."

The grandmother was curious. "What trick is that my dear?" she asked.

The little boy replied, "I heard Daddy tell Mommy that he would climb the walls if you came to visit us again."

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Telescope

In 1851, the first U.S. patent for a telescope design was issued to Alvan Clark of Cambridge, Mass. (No. 8,509). Clark was a portrait painter who was interested in astronomy as were so many others at that time. He had made several small lenses and mirrors as a hobby. The fact that he could detect the small residual errors in one of the the best lenses Europe could offer convinced him that he could do as well. After he gained a reputation in Europe the American orders started to come in. The Alvin Clark Company became one of the foremost producers of some of the largest lenses for telescopes in the 1800's.*
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