Calculate the number 518
[6464] Calculate the number 518 - NUMBERMANIA: Calculate the number 518 using numbers [7, 3, 2, 9, 43, 658] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 11 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 518

NUMBERMANIA: Calculate the number 518 using numbers [7, 3, 2, 9, 43, 658] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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Little Johnny on Math

A teacher asks her class, "If there are 5 birds sitting on a fence and you shoot one of them, how many will be left?" She calls on little Johnny.
He replies, "None, they will all fly away with the first gunshot."
The teacher replies, "The correct answer is 4, but I like your thinking."
Then little Johhny says, "I have a question for YOU. There are 3 women sitting on a bench having ice cream: One is delicately licking the sides of the triple scoop of ice cream. The second is gobbling down the top and sucking the cone. The third is biting off the top of the ice cream. Which one is married?"
The teacher, blushing a great deal, replied, "Well, I suppose the one that's gobbled down the top and sucked the cone."

To which Little Johnny replied, "The correct answer is 'the one with the wedding ring on', but I like your thinking."

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Radioactivity

In 1896, Henri Becquerel read a report to the French Academy of Sciences of his investigation of the phosphorescent rays of some “double sulfate of uranium and potassium” crystals. He reported that he placed the crystals on the outside of a photographic plate wrapped in sheets of very thick black paper and exposed the whole to the sun for several hours. When he developed the photographic plate, he saw a black silhouette of the substance exposed on the negative. When he placed a coin or metal screen between the uranium crystals and the wrapped plate, he saw images of those objects on the negative. He did not yet know yet that the sun is not necessary to initiate the rays, nor did he yet realise that he had accidentally discovered radioactivity. He would learn more from a further accidental discovery on 26 Feb 1896.
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