MATH PUZZLE: Can you replace...
[4360] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 135 - The first user who solved this task is Thinh Ddh
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 135
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
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Advice From a Wise Woman

Sally was driving home from one of her business trips in Northern Arizona when she saw an Elderly Native American Woman walking on the side of the road.
As the trip was a long and quiet one, she stopped the car and asked the woman if she would like a ride. With a silent nod of thanks, the woman got into the car.
Resuming the journey, Sally tried in vain to make a bit of small talk with the woman.
The old woman just sat silently, looking intently at everything she saw, studying every little detail, until she noticed a brown bag on the seat next to Sally.
‘What in bag?’ asked the old woman. Sally looked down at the brown bag and said, ‘It’s a bottle of wine. I got it for my husband.’
The woman was silent for another moment or two.
Then, speaking with the quiet wisdom of an elder, she said, ‘Good trade.’

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Thomas Newcomen

Died 5 Aug 1729 at age 66 (born 24 Feb 1663). English engineer and inventor of the the world's first successful atmospheric steam engine. His invention of c.1711 came into use by 1725 to pump water out of coal mines or raise water to power water-wheels. On each stroke, steam filled a cylinder closed by a piston, then a spray of water chilled and condensed the steam in the cylinder creating a vacuum, then atmospheric pressure pushed the piston down. A crossbeam transferred the motion of the piston to operating the pump. This was wasteful of fuel needed to reheat the cylinder for the next stroke. Despite being slow and inefficient, Newcomen's engine was relied on for the first 60 years of the new steam age it began, perhaps the single most important invention of the Industrial Revolution.
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