Calculate the number 350
[932] Calculate the number 350 - NUMBERMANIA: Calculate the number 350 using numbers [8, 2, 3, 2, 71, 219] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 37 - The first user who solved this task is Sanja Šabović
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Calculate the number 350

NUMBERMANIA: Calculate the number 350 using numbers [8, 2, 3, 2, 71, 219] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 37
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Special gift

An older, white haired man walked into a jewelry store one Friday evening with a beautiful young gal at his side.

He told the jeweler he was looking for a special ring for his girlfriend.The jeweler looked through his stock and brought out a $5,000 ring and showed it to him.

The old man said, "I don't think you understand, I want something very special."

At that statement, the jeweler went to his special stock and brought another ring over.

"Here's a stunning ring at only $40,000," the jeweler said.

The young lady's eyes sparkled and her whole body trembled with excitement.

The old man seeing this said, "We'll take it."

The jeweler asked how payment would be made and the old man stated by check. "I know you need to make sure the check is good, so I'll write it now and you can call the bank on Monday to verify the funds and I'll pick the ring up Monday afternoon," he said.

Monday morning, a very teed-off jeweler phoned the old man. "There's no money in that account."

"I know", said the old man, "but can you imagine the weekend I had?"

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Sulfa drugs

In 1951, a patent for improved sulfonamide drugs was issued to James W. Clapp and Richard O. Roblin, (U.S. No. 2,554,816). Sulfa drugs are members of a group of synthetic antibacterial drugs containing the sulfanilamide molecular structure. Sulfonamides (first observed in 1932) were the first chemical substances that were systematically used to cure and prevent bacterial infections in humans. Of the 5,000 sulfa drugs prepared and tested, fewer than 20 continue to have therapeutic value because resistant strains of bacteria have developed. More potent antibacterial drugs have largely replaced the sulfa drugs. They remain useful in the treatment of urinary tract infection.[Image: The general formula of the patented drugs is a 5-membered heterocyclic sulfonamide having at least 3-hetero atoms. X is carbon or nitrogen which may have substituents such as hydroxyl, amino, acylamino or sulfonanide radicals; R and R' can be hydrogen, alkyl, alkaryl or aryl radicals; Y is sulfur or nitrogen (which in the case of nitrogen may have substituents such as an aryl or alkyl radical. Also X, Y may be part of a fused ring system in which the 5-membered ring shown forms a ring fused with a 6-membered heterocyclic ring such a pyridine.]
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