MAGIC SQUARE: Calculate A+B*C
[1903] MAGIC SQUARE: Calculate A+B*C - The aim is to place the some numbers from the list (14, 15, 18, 26, 27, 30, 47, 49, 50, 53, 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: 40 - The first user who solved this task is Djordje Timotijevic
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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (14, 15, 18, 26, 27, 30, 47, 49, 50, 53, 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: 40
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #magicsquare
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A trip to the movies...

For the first time in many years, an old man traveled from his rural town to the city to attend a movie.

After buying his ticket, he stopped at the concession stand to purchase some popcorn. As he handed the attendant $1.50, he couldn't help but comment, "The last time I went to the movies, popcorn was only 15 cents."

"Well, sir," the attendant replied with a grin, "You're really going to enjoy yourself this evening. We have sound now."

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Portland cement US patent

In 1871, U.S. patent No. 119,413 for the composition of portland cement was issued to David Oliver Saylor, of Allentown, Pa. In 1871, Saylor tried his hand at selecting and mixing different kinds of rock from his quarries to produce portland cement at the first US plant in Coplay, Pa. After initial difficulties, he succeeded with a mixture of magnesium clay with limestone clay. Samples shown at the 1876 Philadelphia Centennial Exhibition compared well with the best imported portland cements. In England, William Aspdin had patented "Portland cement," and coined the name (1852). The first recorded shipment of portland cement to the US was in 1868, when European manufacturers began shipping cement as ballast in tramp steamers at very low freight rates.[Image: Kilns at Coplay, Pa.]
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