MAGIC SQUARE: Calculate A*B-C
[7719] MAGIC SQUARE: Calculate A*B-C - The aim is to place the some numbers from the list (16, 19, 23, 31, 34, 38, 48, 69, 72, 76) 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: 1
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (16, 19, 23, 31, 34, 38, 48, 69, 72, 76) 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: 1
#brainteasers #math #magicsquare
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Chinese Business Trip

A man went on a business trip to China and wanted to buy some gifts for his kids. He went to a shop and found a nice looking CD player. Wary of buying inferior goods, he asked the shopkeeper, 'What would happened if this does not work?'
The shopkeeper quietly points to the only sign in English that reads, 'GUARANTEE NO SPOILT'.
Feeling assured, he paid for the CD player and returns to his hotel. He tried to use the CD player after returning to the hotel but it would not even switch on.
He quickly return to the shop and asked for a refund or an exchange for another unit. When the shopkeeper refused to give either, the man points to the sign assuring him of a guarantee.
The shopkeeper then said, 'Brother, you are in China. We read from the right to the left.'

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Halley's comet

In 1758, the predicted return of Halley's comet was first sighted by German farmer and amateur astronomer, Johann Georg Palitzsch, as a faint object in Pisces. Edmond Halley had predicted in 1705 the return of the comet to the Earth's vicinity every 75.5 years. For the first time the scientific prediction had been proven. Halley himself had died 16 years before this new event. Palitzsch also observed the 6 Jun 1761 transit of Venus, when he saw a black band linking Venus and the Sun near the beginning and end of the transit ("black drop effect") and correctly interpreted this as evidence that Venus possessed an atmosphere. He also measured the period of the variation of the brightness of the star Algol.
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