Replace the question mark with a number
[4257] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 157 - The first user who solved this task is H Tav
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 157
The first user who solved this task is H Tav.
#brainteasers #math #riddles
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Three Doors

An airline captain was breaking in a new stewardess. The route they were flying had a layover in another city. Upon their arrival, the captain showed the stewardess the best place for airline personnel to eat, shop and stay overnight.
The next morning, as the pilot was preparing the crew for the day's route, he noticed the new stewardess was missing. He knew which room she was in at the hotel and called her up wondering what happened. She answered the phone, crying, and said she couldn't get out of her room. "
You can't get out of your room?" the captain asked, "Why not?"
The stewardess replied: "There are only three doors in here," she sobbed, "one is the bathroom, one is the closet, and one has a sign on it that says 'Do Not Disturb'!"    

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Diagnostic public heath laboratory

In 1892, the New York City health department established the first diagnostic public heath laboratory in the U.S. as its Division of Pathology, Bacteriology and Disinfection. It was spurred by the scare of Asiatic cholera at the time. In 1887, Drs. Hermann M. Biggs and T. Mitchell Prudden had been able to isolate cholera vibrios from passengers on a ship of immigrants. Biggs lobbied for the establishment of a laboratory for the purpose, and was able to use this new diagnosis when he was made director of the new Division. From the testing of suspected cholera cases he initiated, he was able to make positive identification of several among them. In 1893, the laboratory expanded its work to test for diphtheria and tuberculosis.*
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