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Calculate the number 7747

NUMBERMANIA: Calculate the number 7747 using numbers [4, 9, 6, 6, 31, 757] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 24

The first user who solved this task is Fazil Hashim.

#brainteasers #math #numbermania

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Church Every Sunday?

Son: "Dad, did you go to Church when you were little?"

Dad: "Yes son, every single Sunday."

Son: "I thought so. Bet it won't do me any good either."

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World Trade Center

In 1970, the construction of the World Trade Center in New York City reached 1353 feet high (411 m), its highest point. This was a complex of 7 buildings including twin 110-story towers, with 9 million sq.ft. of office space. The towers' design by architect Minoru Yamasaki used a steel frame with glass curtain walls. Observation decks at the top of the towers gave a view of 45 miles. The building had three vertical zones served by express elevators to skylobbies at the 41st and 74th floors and local elevators within the three zones. Once the highest skyscrapers in the world (until surpassed by the Sears Tower, Chicago), the twin towers were totally destroyed by fire 11 Sep 2001 by terrorists who crashed hijacked airliners into them.

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