BRAIN TEASERS
The Easiest Tasks (page 589)

The Easiest Tasks (page 589)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 5881 to 5890.
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Calculate the number 1426

NUMBERMANIA: Calculate the number 1426 using numbers [8, 9, 1, 2, 43, 309] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is NĂ­lton CorrĂȘa de Sousa.
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#brainteasers #math #numbermania
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Calculate the number 1817

NUMBERMANIA: Calculate the number 1817 using numbers [4, 4, 5, 4, 68, 475] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Calculate the number 564

NUMBERMANIA: Calculate the number 564 using numbers [8, 3, 6, 2, 64, 932] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania

What does two plus two equal?

A mathematician, a statistician and an accountant apply for the same job. The interviewer calls in the mathematician and asks "What does two plus two equal?"

The mathematician replies "Four." The interviewer asks "Four, exactly?" The mathematician looks at the interviewer incredulously and says "Yes, four, exactly."

Then the interviewer calls in the statistician and asks the same question "What does two plus two equal?" The statistician says "On average, four - give or take ten percent, but on average, four."

Then the interviewer calls in the accountant and poses the same question "What does two plus two equal?"

The accountant gets up, locks the door, closes the shade, sits down next to the interviewer and says "What do you want it to equal?"

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Calculate the number 2708

NUMBERMANIA: Calculate the number 2708 using numbers [2, 1, 8, 2, 11, 904] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (9, 10, 14, 24, 25, 29, 34, 37, 65, 66, 70) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B+C.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (4, 6, 7, 9, 11, 12, 27, 50, 52, 53) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B-C.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare
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Calculate the number 1371

NUMBERMANIA: Calculate the number 1371 using numbers [3, 1, 6, 5, 30, 401] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Calculate the number 954

NUMBERMANIA: Calculate the number 954 using numbers [6, 7, 3, 4, 71, 563] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Calculate the number 1599

NUMBERMANIA: Calculate the number 1599 using numbers [8, 2, 7, 4, 11, 150] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (1, 2, 4, 5, 9, 11, 14, 15, 16, 25, 83) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B+C.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Sir Nevill F. Mott

Born 30 Sep 1905; died 8 Aug 1996 at age 90. Nevill Francis Mott was an English physicist whoshared(with PhilipW. Anderson and John H. Van Vleck of the U.S.) the 1977 Nobel Prize for Physics for his independent researches on the magnetic and electrical properties of amorphous semiconductors. Whereas the electric properties of crystals are described by the Band Theory - which compares the conductivity of metals, semiconductors, and insulators - a famous exception is provided by nickel oxide. According to band theory, nickel oxide ought to be a metallic conductor but in reality is an insulator. Mott refined the theory to include electron-electron interaction and explained so-called Mott transitions, by which some metals become insulators as the electron density decreases by separating the atoms from each other in some convenient way.
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