Calculate the number 2412
[4071] Calculate the number 2412 - NUMBERMANIA: Calculate the number 2412 using numbers [8, 8, 3, 3, 51, 856] 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 Djordje Timotijevic
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Calculate the number 2412

NUMBERMANIA: Calculate the number 2412 using numbers [8, 8, 3, 3, 51, 856] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 28
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #numbermania
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A mathematician, a physicist...

A mathematician, a physicist, and an engineer are all given identical rubber balls and told to find the volume. They are given any tools they want, and have all the time they need.
The mathematician uses a measuring tape to record the circumference. He then divides by two times pi to get the radius, cubes that, multiplies by pi again, and then multiplies by four-thirds and thereby calculates the volume.
The physicist gets a bucket of water, places 1.000000 gallons of water in the bucket, drops in the ball and measures the displacement to six significant figures.
The engineer writes down the serial number of the ball and looks it up online.
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Window envelope

In 1902, the first U.S. patent for a window envelope was issued to Americus F. Callahan of Chicago, Ill., which he called the outlook envelope (U.S. No. 701,839). He leased the patent to the Envelope company of Springfield, Mass., which began its manufacture in Jul 1902. This style of envelope was able to save expense of printing or labour of addressing, and in addition save time in preparing the message for dispatch when the customary addresses are already on the letter paper itself.
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