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Calculate the number 1991

NUMBERMANIA: Calculate the number 1991 using numbers [4, 6, 6, 6, 74, 713] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

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Two-timer

Mrs. Donnell said to her maid: "Oh Mary, I suspect that my husband is having an affair with his secretary."

"I don't believe it," Mary snapped: "you're just saying that to make me jealous."

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Carolus Linnaeus

Died 10 Jan 1778 at age 70 (born 23 May 1707). Swedish botanist and explorer who was the first to establish a precise biological classification, with a uniform system for naming organisms by genera and species of organisms. He associated whales as mammals, but did not group man with the apes. Later, others improved his scheme by adopting more natural, developmental distinctions between species. He travelled widely to build his collection of plant specimens. He recognised balance and competition in nature relating to insects, animals and plants.

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