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Calculate the number 570

NUMBERMANIA: Calculate the number 570 using numbers [8, 1, 9, 3, 15, 446] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 34

The first user who solved this task is Sanja Šabović.

#brainteasers #math #numbermania

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Jeff Dunham: Difficulty in Being Politically Correct

Jeff Dunham: Youre afraid of offending people?
Achmed: Yeah.
Jeff Dunham: Youre a terrorist. You kill people.
Achmed: Thats different. Killing people is easy; being politically correct is a pain in the ass.

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Computer pump

In 1932, the first U.S. patent for a computer pump was issued to the inventors, Robert J. Jauch, Ivan R. Farnham and Ross H. Arnold for their "Liquid Dispensing Apparatus" (No. 1,888,533). Their motorized pump both metered and displayed the exact gallons of gasoline or other liquid dispensed, and also accurately computed and showed the price in dollars and cents while delivery was made. The internal totalizer could be easily reset for any new price per gallon. It solved the problems of inaccurate delivery of volume from a visible type dispenser, and its necessary ready-reckoning card with quantity and cost tables, which needed a new card when prices changed. The Wayne Co., Fort Wayne, Indiana, marketed it from 1 Nov 1931.«

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