BRAIN TEASERS

# Calculate the number 2487

NUMBERMANIA: Calculate the number 2487 using numbers [9, 6, 2, 4, 74, 153] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Fazil Hashim.
#brainteasers #math #numbermania

### A visitor to a college campus

A visitor to a college campus paused to admire the new Hemingway Hall. "It's a pleasure to see a building named for Ernest Hemingway."
"Actually," said the guide, "it's named for Joshua Hemingway. No relation."
"Oh? Was Joshua Hemingway a writer also?"
"Yes, indeed. He wrote a check."
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### C. B. Momsen

Born 21 Jun 1896; died 25 May 1967 at age 70.Vice-Admiral Charles Bowers Momsen was an American inventor and navy officer whocreated the Momsen Lung, an underwater breathing device for escape from disabled submarines. It was an oblong rubber bag hung from the neck and strapped around the waist. A tube led from the bag to a mouthpiece to inhale oxygen and a return tube through a canister of soda lime inside the canister to remove exhaled carbon dioxide and then recycle the air. This provided air for a gradual ascent to avoid the “bends.” In Aug 1937 he became Officer in Charge of Experimental Diving at the NavyYard, Washington, D.C., where he developed new decompression tables and supported proposed use of a helium and oxygen mixture for deep diving. Momsen received the Distinguished Service Medal (1933). Today, the Momsen lung has been superced by other methods, such as the Stanke Hood or free ascent.«
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