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MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (18, 19, 20, 21, 22, 28, 29, 54, 56, 63, 72) 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: 0

#brainteasers #math #magicsquare

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Stairs

Me: and this is my house

Friend: what’s upstairs

Me: stairs don’t talk

Found on tweeter, posted by @fishbowel on 8th Sep 2018

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Sir John Bennet Lawes

Died 31 Aug 1900 at age 85 (born 28 Dec 1814).(1st Baronet) English agronomist who initiated the artificial fertiliser industry and founded the world's first agricultural research station. While a young man, he studied how manures improved growth of potted plants and crops. In 1842, having patented a method to make superphosphate by treating phosphate rock with sulphuric acid, he started the first artificial fertiliser factory. In 1843, Lawes opened the Rothamsted Experimental Station where he began a 57-yr collaboration with chemist Joseph Henry Gilbert. They developed modern scientific agriculture, researching animal nutrition with different fodders, and the effect on crop yields of inorganic and organic fertilisers. Some of their long-term field experiments continue to this day.«

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