MATH PUZZLE: Can you replace...
[3105] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 669 - The first user who solved this task is Gospodja Pufna
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 669
The first user who solved this task is Gospodja Pufna.
#brainteasers #math #riddles
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Getting tough

My grandfather worked in a blacksmith shop when he was a boy, and he used to tell me, when I was a little boy myself, how he had toughened himself up so he could stand the rigors of blacksmithing.

One story was how he had developed his arm and shoulders muscles. He said he would stand outside behind the house and, with a 5-pound potato sack in each hand, he would extend his arms straight out to his sides and hold them there as long as he could.

After awhile, he tried 10-pound potato sacks, then 50-pound potato sacks. Finally, he got to where he could lift a 100-pound potato sack in each hand and hold his arms straight out for more than a full minute!

Next, he started putting potatoes in the sacks.

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John Shaw Billings

Born 12 Apr 1838; died 11 Mar 1913 at age 74. American surgeon and librarian whose organization of U.S. medical institutions played a central role in the modernization of hospital care and the maintenance of public health. During the Civil War, in the battles of Chancellorsville and Gettysburg, he performed many operations and was the first surgeon in the war to attempt, with success, excision of the ankle joint. He was profoundly interested in advancing knowledge by creating libraries, including the New York Public Library, to improve access to books. Billings also had ideas about hospital architectural design. He planned the new Johns Hopkins Hospital in Baltimore with ventilation systems that reflected the best contemporary understanding of industrial hygiene.
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