Calculate the number 2543
[3912] Calculate the number 2543 - NUMBERMANIA: Calculate the number 2543 using numbers [3, 4, 3, 1, 57, 415] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 14 - The first user who solved this task is H Tav
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Calculate the number 2543

NUMBERMANIA: Calculate the number 2543 using numbers [3, 4, 3, 1, 57, 415] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is H Tav.
#brainteasers #math #numbermania
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Money Is No Object

A doctor tells a rich old man that he's going to die if he doesn't get a new heart soon. The old man tells the doctor to search the world for the best heart available, money is no object. A few days later the doctor calls the old man and says he has found three hearts but they are all expensive. The old man reminds the doctor that he is filthy rich and implores him to tell him about the donors they came from.

'Well, the first one belonged to 22 year old marathon runner, never smoked, ate only the most healthy foods, was in peak condition when he was hit by a bus. No damage to the heart, of course. But it costs $100,000!'

The old man waving off the last part about the cost asks the doctor to tell him about the second donor. 'This one belonged to a 16 year old long-distance swimmer, high school kid. Lean and mean. Drowned when he hit his head on the side of the pool. That heart'll set you back $150,000!'

'Okay,' said the old man, 'what about the third heart?'

'Well this one belonged to a 58 year-old man, smoked three packs of cigarettes a day, weighed over 300 pounds, never exercised, drank like a fish... this heart is going for $500,000!!!'

'Five-hundred grand?!?!', the old man exclaimed, 'why so expensive?'

'Well', said the doctor, 'this heart belonged to a lawyer... so it was never used!'

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Internal Combustion Engine

In 1860, the Società Anonima del nuova motore Barsante e Matteucci (Anonymous Society of the New Barsanti and Matteucci Engine) was formed in Florence, Italy, to manufacture internal combustion engines. On 5 Jun 1853, Father Eugenio Barsante and engineer Felice Matteucci were the first to record having designed a three-stroke gas engine that was to be commercially developed. They deposited a sealed envelope at the secretariat of the Georgofili Academy of Florence outlining their work to that date. They also held British patents. The first engine in actual operation was installed in 1856 at the Maria Antonia Railway Station in Florence. A piston was moved by atmospheric pressure after a vacuum was produced by the explosion of flammable gas inside it using an electric spark from a Rumkoff coil.«
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