Calculate the number 1311
[4112] Calculate the number 1311 - NUMBERMANIA: Calculate the number 1311 using numbers [2, 7, 5, 2, 55, 526] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 20 - The first user who solved this task is Djordje Timotijevic
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Calculate the number 1311

NUMBERMANIA: Calculate the number 1311 using numbers [2, 7, 5, 2, 55, 526] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 20
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #numbermania
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After writing a simple equation on the board the teacher asked if anyone could solve the problem.
Little Johnny walked up to the board, erased it and said, “Problem Solved.”

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Camera roll film

In 1881, roll film for cameras was patented by David H. Houston, who was a Scottish immigrant that travelled to homestead in Dakota (1879) on a 400-acre farm, 30 miles NE of Fargo. His many patents ranged from a disc plow to a portable camera. George Eastman bought 21 patents on cameras from him, including the invention that made Houston famous - a portable camera designed in 1879, for which Houston received $5000 plus monthly royalties for life. This camera suited the everyday person, rather than a professional photographer's big studio camera on wheels. First sold by Eastman in 1881 for $25, the Kodak camera came loaded with a 100-exposure film that Houston would process and reload the camera for $10. Houston died a rich man in 1906.
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