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Calculate the number 519

NUMBERMANIA: Calculate the number 519 using numbers [7, 3, 6, 6, 81, 207] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 13

The first user who solved this task is Nílton Corrêa De Sousa.

#brainteasers #math #numbermania

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Second Opinion

A patient has a sore throat and goes to a doctor to get treatment for it.
Doctor: Your tonsils have to come out.
Patient: I wanna second opinion.
Doctor: Okay, you're ugly, too.

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Charles Bonnet

Born 13 Mar 1720; died 20 May 1793 at age 73. Swiss naturalist and philosophical writer who discovered parthenogenesis (reproduction without fertilization) in female aphids. Bonnet also: demonstrated the regenerative ability of annelid worms, found that insects breathe through pores which he called stigmata, studied photosynthesis and epinasty in plants and noted the emission of bubbles by a submerged illuminated leaf. With eyesight failing in the 1750's he turned to speculation. Remembering the aphid, in 1770, Bonnet published an argument that all females carry within them all future evolutionary generations in a miniature form, able to survive even such cataclysms as the biblical Flood. He predicted, moreover, that these catastrophes thus brought about evolutionary change.

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