Calculate the number 3125
[3846] Calculate the number 3125 - NUMBERMANIA: Calculate the number 3125 using numbers [6, 9, 4, 2, 57, 201] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 20 - The first user who solved this task is Thinh Ddh
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Calculate the number 3125

NUMBERMANIA: Calculate the number 3125 using numbers [6, 9, 4, 2, 57, 201] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 20
The first user who solved this task is Thinh Ddh.
#brainteasers #math #numbermania
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Who Should Make the Coffee?

A man and his wife were having an argument about who should brew the coffee each morning. The wife said, "You should do it, because you get up first, and then we don't have to wait as long to get our coffee."The husband said, "You are in charge of the cooking around here so you should do it, because that is your job, and I can just wait for my coffee."Wife replies, "No, you should do it, and besides it says in the Bible that the man should do the coffee."Husband replies, "I can't believe that! Show me."So she fetched the Bible, and opened the New Testament and showed him at the top of several pages, that it indeed says, "HEBREWS."
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Samuel Hall

Died 21 Nov 1863 (born 1781).English engineer who invented the surface condenser for steam boilers (patented 1834), an important milestone of its era, because it possible to recirculate fresh water instead of using corrosive salt water in the boilers of ocean-going steam ships. Steam passed through a number of small condensing tubes cooled on the outside surfaces by the circulation of cold sea water around them. By keeping the boilers free of salt, a considerable saving of fuel was realized, and repair expenses were reduced. Initial trials were unsuccessful until improved by a patent by Spencer who inserted an indiarubber ring around each end of the tube to keep them properly water tight. Hall held more than 20 patents, mostly relating to steam engines and boilers.
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