MAGIC SQUARE: Calculate A*B-C
[3134] MAGIC SQUARE: Calculate A*B-C - The aim is to place the some numbers from the list (19, 21, 22, 24, 28, 30, 65, 68, 74, 89) 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: 35 - 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 (19, 21, 22, 24, 28, 30, 65, 68, 74, 89) 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: 35
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #magicsquare
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New Hearing Aids

An elderly gentleman had serious hearing problems for a number of years.
He finally went to a doctor, and was fitted with excellent new hearing aids.
He returned a month later for a checkup, and the doctor said, “Your hearing is perfect! Your family must be really pleased that you can hear again.”

The gentleman replied, “Oh, I haven't told my family just yet. I still sit around quietly; but, now I listen to the conversations. I've changed my will three times already.

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U.S. prototype meter and kilogram

In 1890, the seals were broken on prototype meter No. 27 and prototype kilogram No. 20 in the Cabinet room of the Executive Mansion by U.S. President Benjamin Harrison, observed by the Secretary of State, the Secretary of the Treasury, and invited guests. Following the Metric Convention (20 May 1875), which the U.S. had signed, prototype measures had been prepared of platinum-iridium alloy from the international prototypes in France, and were ready for distribution on 26 Sep 1889. Two of each were furnished to the U.S.: kilograms Nos. 21 and 27, and meters Nos. 4 and 20. Those on which the seals were broken were thereby adopted as the U.S. national prototypes, which would thereafter be used to define all measurements of length and weight in the U.S.«
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