Calculate the number 4101
[1164] Calculate the number 4101 - NUMBERMANIA: Calculate the number 4101 using numbers [4, 4, 5, 6, 39, 972] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 28 - The first user who solved this task is Sanja Šabović
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Calculate the number 4101

NUMBERMANIA: Calculate the number 4101 using numbers [4, 4, 5, 6, 39, 972] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 28
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Two buddies are fishing, but

Two buddies are fishing, but they haven’t caught anything all day. Then, another fisherman walks by with a huge load of fish. They ask him "excuse me, but where did you get all those fish?"
The other fisherman replies,” If you just go down the stream until the water isn't salty, there are a ton of hungry fish."
They thank him and go on their way. 15 minutes later, one fisherman says to the other "fill the bucket up with water and see if the water is salty."
He dips the bucket in the stream and drinks some. "Nope. Still salty." 30 minutes later, he asks him to check again.
"Nope, still salty." One our later they check again. "Nope. Still salty."
"This isn't good," the fisherman finally says. "We have been walking for almost two hours and the water is still salty!"
"I know," says the other. "And the bucket is almost empty!"
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Water softener patent

In 1937, a patent was issued to Leroy C. Lind for the Servisoft water softener (U.S. No. 2,087,157). The invention used a regeneratable granulated mineral, such as zeolite, which was already in use by domestic water softening systems using a permanent bed of the material. Leroy Lind devised a method that would be easier and faster to maintain. It would be less costly, and enabled the spent mineral to be regenerated collectively from a number of installations at a central location. The softener was packaged in water pervious, flexible walled cartridges or sacks sized to stack several vertically within a tall cylindrical tank connected to the water supply line. The contents of the sacks would settle to seal against the interior surface of the tank. The tank had a removable top to facilitate switching with renewed sacks.«
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