Calculate the number 4371
[2827] Calculate the number 4371 - NUMBERMANIA: Calculate the number 4371 using numbers [7, 5, 1, 4, 53, 839] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 35 - The first user who solved this task is Manguexa Wagle
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Calculate the number 4371

NUMBERMANIA: Calculate the number 4371 using numbers [7, 5, 1, 4, 53, 839] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 35
The first user who solved this task is Manguexa Wagle.
#brainteasers #math #numbermania
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The photographer for a nationa...

The photographer for a national magazine was assigned to get photos of an enormous forest fire. Smoke at the scene was too thick to get any good shots, so he frantically called his home office to hire a plane. 
"It will be waiting for you at the airport!" he was assured by his editor. 
As soon as he got to the small, rural airport, sure enough, a plane was warming up near the runway. He jumped in with his equipment and yelled, "Let's go! Let's go!" The pilot swung the plane into the wind and soon they were in the air. 
"Fly over the north side of the fire," said the photographer, "and make three or four low level passes." 
"Why?" asked the pilot. 
"Because I'm going to take pictures! I'm a photographer, and photographers take pictures!" said the photographer with great exasperation and impatience. 
After a long pause the pilot said, "You mean you're not the instructor?" 
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Yellow fever research

In 1900, Private William Dean became the first volunteer with clear results that exposed himself to yellow fellow as part of the research carried out by Walter Reed at Quemados, Cuba. Dean allowed Mosquito No.12 to feed on his arm. Previous volunteers exposed to mosquitoes that had fed on infected persons had not developed yellow fever. James Carroll, a member of the Yellow Fever Commission, received the bite of an infected mosquito (with a longer incubation period), and on 29 Aug 1900 became severely ill with yellow fever. The results were not clear in that Carroll may have acquired the disease from exposure of some other kind. When William Dean, bitten by the same mosquito as Carroll, developed the disease, the mosquito theory was vaildated. Both recovered.«
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