Calculate the number 668
[6521] Calculate the number 668 - NUMBERMANIA: Calculate the number 668 using numbers [9, 7, 8, 3, 76, 320] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 10 - The first user who solved this task is Nasrin 24 T
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Calculate the number 668

NUMBERMANIA: Calculate the number 668 using numbers [9, 7, 8, 3, 76, 320] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
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Ten Dog Rules

1. The dog is not allowed in the house.
2. Okay, the dog is allowed in the house, but only in certain rooms.
3. Okay, fine, the dog is allowed in all rooms, but has to stay off the furniture.
4. The dog can get on the old furniture only.
5. Fine, the dog is allowed on all the furniture, but is not allowed to sleep with the humans on the bed.
6. Okay, the dog is allowed on the bed, but only by invitation.
7. The dog can sleep on the bed whenever he wants, but not under the covers.
8. The dog can sleep under the covers by invitation only!
9. The dog can sleep under the covers every night.
10. Humans must ask permission to sleep under the covers with the dog.
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John Motley Morehead III

Born 3 Nov 1870; died 7 Jan 1965 at age 94.American chemist who wasinvolvedwith commercial production of calcium carbide (discovered accidentally with his father on 2 May 1892). Calcium carbide is used to generate acetylene gas, important for welding, and is the basis for the syntheses of many organic chemicals and polymers. In 1897, he became a construction engineer for building calcium carbide manufacturing plants in the U.S. and abroad. He cofounded (1900), and was a major stockholder of, the Union Carbide Corporation. During 1899, he designed a gas analysis apparatus which became standard equipment in industrial laboratories. He publishedAnalysis of Industrial Gases.(1900). He donated the Morehead Planetarium, the first at a U.S. university, which opened 10 May 1949 at the University of Chapel Hill, North Carolina.«.
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