MAGIC SQUARE: Calculate A+B-C
[6896] MAGIC SQUARE: Calculate A+B-C - The aim is to place the some numbers from the list (7, 10, 11, 12, 15, 16, 17, 59, 60, 61) 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: 11 - 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, 10, 11, 12, 15, 16, 17, 59, 60, 61) 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: 11
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
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Whitey was in the fertilized e...

Whitey was in the fertilized egg business. He had several hundred young layers called pullets and eight or ten roosters, whose job was to fertilize the eggs. Whitey kept records and any rooster that didn't perform went into the soup pot and was replaced.
That took an awful lot of Whitey's time so Whitey got a set of tiny bells and attached them to his roosters.
Each bell had a different tone so Whitey could tell from a distance, which rooster was performing.
Now he could sit on the porch and fill out an efficiency report simply by listening to the bells.
Whitey's favorite rooster was old Brewster, a very fine specimen he was, too. But on this particular morning Whitey noticed old Brewster's bell hadn't rung at all!
Whitey went to investigate. The other roosters were chasing pullets, bells-a-ringing. The pullets, hearing the roosters coming, would run for cover.
BUT, to Whitey's amazement, Brewster had his bell in his beak, so it couldn't ring. He'd sneak up on a pullet, do his job and walk on to the next one.
Whitey was so proud of Brewster, he entered him in the county fair... and Brewster became an overnight sensation among the judges. The result...
The judges not only awarded Brewster the "No Bell Piece Prize" but they also awarded him the "Pulletsurprise" as well.
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Gallium

In 1875, the element gallium was discovered by P.E. Lecoq de Boisbaudran. In an article in the Annales de Chimie in 1877, he said his search started 15 years earlier, but with inadequate resources. Even with a new laboratory (1863) he had no success until he realized he was using too little material, and in Feb 1874 started with 52 kg of a mineral from Pierrefitte mine. He finally isolated a tiny sample: “On August 27, 1875, between three and four at night, I perceived the first indications of the existence of a new element that I named gallium in honor of France (Gallia).”His first spectroscopic analysis of the tiny amount (he estimated 1/100 mg) of the prepared sample showed a previously unknown violet line at 417.0 indicating a new element.
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