Calculate the number 4937
[523] Calculate the number 4937 - NUMBERMANIA: Calculate the number 4937 using numbers [8, 7, 9, 5, 58, 721] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 32 - The first user who solved this task is Sanja Šabović
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Calculate the number 4937

NUMBERMANIA: Calculate the number 4937 using numbers [8, 7, 9, 5, 58, 721] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 32
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Three nurses sadly pass awa...

Three nurses sadly pass away. They rise up into heaven, and there they approach the gatekeeper to plead their case for entering paradise.
So the keeper points to the first nurse, who says: “I worked in an emergency room. I treated many people, and always did my best to help. And although sometimes we would lose patients, I still think I deserve to enter.”
The gatekeeper glances at her file and admits her to heaven.
The second nurse then says, “I used to work in the operating room, assisting surgeons. It was a lot of stress, and we lost many people, but I always did my best.”
The keeper glances at her file and motions her to enter.
“And you?” He asks the third nurse.
“I was a case manager for an HMO. I worked with thousands of patients.”
The gatekeeper takes a long and careful look at her file. He pulls out a calculator and starts entering digits quickly, looking back from time to time at the woman’s file. After a few minutes like this, the keeper looks up, smiles at her and says: “Congratulations! You’ve been admitted to heaven… for five days!”

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Cotton cultivator

In 1874, an “Improvement in Cotton-Cultivators” was issued a U.S. patent for its black American inventor, Edward H. Sutton, of Edenton, north Carolina (No. 149,543). A horizontal beam, mounted on wheels, had a harness coupling at the front, and carried three blades. Teeth on the forward blade were intended to loosen and pulverise the soil, followed by two blades to cut weeds. The middle of the three blades was arranged to “be rotated in such a manner as to cut the weeds or thin out the growing cotton which is beyond the reach of the stationary blade” at the back. Adjustment of the middle blade was made using a spring-loaded lever attached from to one of the operator's handles behind the plough. The short patent application was made on 10 Feb 1874, and issued less than two months later.«[Image: detail from patent drawing, showing blades.]
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