BRAIN TEASERS

# Calculate the number 283

NUMBERMANIA: Calculate the number 283 using numbers [5, 2, 8, 3, 58, 166] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania

### A teacher told her young class...

A teacher told her young class to ask their parents for a family story with a moral at the end of it, and to return the next day to tell their stories.
In the classroom the next day, Joe gave his example first, "My dad is a farmer and we have chickens. One day we were taking lots of eggs to market in a basket on the front seat of the truck when we hit a big bump in the road; the basket fell off the seat and all the eggs broke. The moral of the story is not to put all your eggs in one basket.."
"Very good," said the teacher.
Next, Mary said, "We are farmers too. We had twenty eggs waiting to hatch, but when they did we only got ten chicks. The moral of this story is not to count your chickens before they're hatched.."
"Very good," said the teacher again, very pleased with the response so far.
Next it was Barney's turn to tell his story: "My dad told me this story about my Aunt Karen.... Aunt Karen was a flight engineer in the war and her plane got hit. She had to bail out over enemy territory and all she had was a bottle of whisky, a machine gun and a machete."
"Go on," said the teacher, intrigued.
"Aunt Karen drank the whisky on the way down to prepare herself; then she landed right in the middle of a hundred enemy soldiers. She killed seventy of them with the machine gun until she ran out of bullets. Then she killed twenty more with the machete till the blade broke. And then she killed the last ten with her bare hands."
"Good heavens," said the horrified teacher, "What did your father say was the moral of that frightening story?"
"Stay away from Aunt Karen when she's been drinking..."
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### Caspar Friedrich Wolff

Born 18 Jan 1734; died 22 Feb 1794 at age 60. German physiologist, known as the "founder of modern embryology." In Theoria Generationis (1759) he first wrote an epigenetic theory of development: that the organs of living things take shape gradually from non-specific tissue. Wolff applied the microscope to the study of animal embryology and remarked that "the particles which constitute all animal organs in their earliest inception are little globules, which may be distinguished under a microscope." The book was ignored for half a century, as the prevailing idea was held that life begins preformed in a small body that grows larger in the same form. His name is found describing parts of the kidneys of embryos: the Wolffian body and the Wolffian ducts.
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