Find number abc
[2677] Find number abc - If b3cb3 - b0839 = a9a4 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 70 - The first user who solved this task is Donya Sayah30
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Find number abc

If b3cb3 - b0839 = a9a4 find number abc. Multiple solutions may exist.
Correct answers: 70
The first user who solved this task is Donya Sayah30.
#brainteasers #math
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9 out of 10 doctors agree

The New England Journal of Medicine reports that 9 out of 10 doctors agree that 1 out of 10 doctors is an idiot.

Jay Leno (April 28 1950-)

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Photoelectric cell

In 1925, the photocell device was given its first U.S. public demonstration. It was shown by the Westinghouse Electric and Mfg Co at the Electrical Show at Grand Central Palace in New York. The photocell was used to count objects by acting as a sensor as each object passed through and interrupted a beam of light. The device was also utilized as a sensor to detect when a person approached a door, which opened as a circuit was activated.«
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