Calculate the number 6890
[6195] Calculate the number 6890 - NUMBERMANIA: Calculate the number 6890 using numbers [7, 6, 7, 6, 76, 455] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 11 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 6890

NUMBERMANIA: Calculate the number 6890 using numbers [7, 6, 7, 6, 76, 455] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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The hearing aid

Seems an elderly gentleman had serious hearing problems for a number of years. He went to the doctor and the doctor was able to have him fitted for a set of hearing aids that allowed the gentleman to hear 100%. The elderly gentleman went back in a month to the doctor and the doctor said, "your hearing is perfect. Your family must be really pleased that you can hear again."

To which the gentleman said, "Oh, I haven't told my family yet. I just sit around and listen to the conversations. I've changed my will three times!"

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Platform scale

In 1831, the first U.S. patent for a platform scale was issued to brothers Erastus and Thaddeus S. Fairbanks of St. Johnsbury, Vermont. Thaddeus invented and built it during the previous year, revolutionized weighing methods; earlier scales had been of the even-balance or steel-yard types. With the invention of the platform scale, the E. and T. Fairbanks and Company (which had until then been produced stoves, plows, forks, machines) began to specialize in manufacturing scales of all sizes. The business was successful, and grew to supply scales worldwide. On 13 Jan 1857, Thaddeus received the first U.S. patent for a railway track scale (No. 16381) which was introduced by their business. The company survives to the present day.
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