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Calculate the number 5389

NUMBERMANIA: Calculate the number 5389 using numbers [7, 7, 1, 7, 27, 750] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 9

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

#brainteasers #math #numbermania

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Stolen glasses

To the person who stole my glasses

I will find you, I have contacts

Photo by Mark Solarski on Unsplash

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Outer-space telecast

In 1968, the first outer-space live telecast was beamed from Apollo VII in orbit. Captain Walter Schirra, Jr., Major Donn Eisele and Major Walt Cunningham showed views of the satellite and views through the windows. The primary objectives for the Apollo VII engineering test flight, were simple: "Demonstrate Command/Service Module (CSM) and crew performance; demonstrate crew/space vehicle and mission support facilities performance during a manned CSM mission; demonstrate CSM rendezvous capability." The Apollo VII was launched 11 Oct 1968. For nearly 11 days, the Command Module was run through numerous tests. and was recovered after a 260-hour flight and 163 orbits.

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