Calculate the number 3720
[3638] Calculate the number 3720 - NUMBERMANIA: Calculate the number 3720 using numbers [5, 4, 1, 1, 28, 911] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 16 - The first user who solved this task is Fazil Hashim
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Calculate the number 3720

NUMBERMANIA: Calculate the number 3720 using numbers [5, 4, 1, 1, 28, 911] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 16
The first user who solved this task is Fazil Hashim.
#brainteasers #math #numbermania
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A male ostrich was chasing two...

A male ostrich was chasing two female ostriches. The one female said to the other, "He's starting to gain on us, we better hide!" So, they stopped and stuck their heads in the sand.
The male ostrich said, "...Hey, where'd they go?"
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First U.S. Bessemer steel rails

In 1865, the first Bessemer steel rails ever rolled in the U.S. were a few rolled at the North Chicago Rolling Mill from hammered blooms made at the Wyandotte rolling mill from ingots of steel made at the experimental steel works at Wyandotte, Mich. The American Iron and Steel Association was in session in Chicago at that time, and several of its members witnessed the rolling of these rails. The North Chicago Rolling Mill was the first large iron and steel plant in the Chicago area, founded in 1857. The first steel rails rolled for a business order in the U.S., were made at the Cambria Iron Company, at Johnstown, Pa., in Aug 1867, from ingots manufactured at the works of the Pennsylvania Steel Company, at Harrisburg, Pa.*[Image: detail from engraving of the much larger area covered by the factory buildings.]
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