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Calculate the number 3536

NUMBERMANIA: Calculate the number 3536 using numbers [1, 3, 4, 4, 72, 859] 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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New Yorkers and Light Bulbs

Q: How many New Yorkers does it take to screw in a light bulb?
A: One. What are you -- stupid?

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Dvorak keyboard

In 1936, the Dvorak typewriter keyboard was patented in the U.S. by Dvorak and Dealey (Patent No. 2,040,248). The efficiency experts August Dvorak (a cousin of the composer) and William Dealey studied the typewriter to determine that they could arrange the keys in a new way which would speed up the operators of the typewriter. They designed a keyboard to maximize efficiency by placing common letters on the home row, and make the stronger fingers of the hands do most of the work. By contrast, the original QWERTY layout was designed for the earlier, less efficient typewriters. Previously, speed would result in two type bars hitting each other in their travel, so the original keyboard was laid out to reduce collisions.

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