Calculate the number 387
[7671] Calculate the number 387 - NUMBERMANIA: Calculate the number 387 using numbers [6, 2, 7, 9, 33, 317] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 387

NUMBERMANIA: Calculate the number 387 using numbers [6, 2, 7, 9, 33, 317] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Little Johnny's kindergarten c...

Little Johnny's kindergarten class was on a field trip to their local police station where they saw pictures tacked to a bulletin board of the 10 most wanted criminals. One of the youngsters pointed to a picture and asked if it really was the photo of a wanted person. 'Yes,' said the policeman. 'The detectives want very badly to capture him.
'Little Johnny asked, 'Why didn't you keep him when you took his picture?’
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James Gregory

Born 6 Nov 1638; died Oct 1675 .Scottish mathematician, astronomer and inventor of the reflecting telescope, born in Aberdeen. He was the first to investigate converging number series, which have an infinite number of terms but a finite sum. He made important contributions to the development of the calculus, although some of his best work remained virtually unknown until long after his death. In 1660 he published his Optica Promota, in which he described the first practical reflecting ("Gregorian") telescope. Light reflected from a concave elliptical secondary mirror is brought to a focus just behind a hole in the primary mirror. It was superceded by the Newtonian and Cassegrain telescopes. Gregory also introduced estimation of stellar distances by photometric methods.
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