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Calculate the number 250

NUMBERMANIA: Calculate the number 250 using numbers [2, 5, 1, 7, 57, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 37

The first user who solved this task is Sanja Šabović.

#brainteasers #math #numbermania

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Wish Comes True

Carlos told his wife he wanted a guitar to play while sitting in the Jacuzzi. “The next day she bought him an electric guitar.”

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Comet Nucleus Tour

In 2002, NASA launched Contour (Comet Nucleus Tour), a U.S. unmanned satellite on a mission to get within 60 miles of a comet nucleus to study frozen samples of the solar system from its infancy. It was launched aboard a Boeing Delta 2 rocket from Cape Canaveral. After orbiting Earth until 15 Aug 2002, the satellite's onboard rockets sent it toward an encounter with Comet Enke in 2003, then Comet Schwassman- Wachman 3 in 2006. It is equipped with a special debris shield so it can navigate closer to the comets and survive bombardment from the minute particles of dust and frozen water that form a comet's most distinctive feature, the tail. The shield includes a layer of Kevlar, the material used in bullet-proof vests.

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