BRAIN TEASERS
The Most Difficult Tasks (page 224)

The Most Difficult Tasks (page 224)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 2231 to 2240.
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Calculate the number 802

NUMBERMANIA: Calculate the number 802 using numbers [9, 6, 1, 1, 19, 740] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nílton Corrêa de Sousa.
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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 (12, 14, 16, 34, 36, 38, 72, 74, 76, 82) 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: 15
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (16, 17, 20, 21, 24, 28, 55, 56, 63, 97) 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: 15
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare

Words of Wisdom...

The problem with the gene pool is that there is no lifeguard.

Experience is something you don't get until just after you need it.

A conscience is what hurts when all your other parts feel so good.

For every action, there is an equal and opposite criticism.

To steal ideas from one person is plagiarism; to steal from many is research.

Two wrongs are only the beginning.

Monday is an awful way to spend 1/7th of your life.

The sooner you fall behind, the more time you'll have to catch up.

A clear conscience is usually the sign of a bad memory.

If you must choose between two evils, pick the one you've never tried before.

Love may be blind, but marriage is a real eye-opener.

Borrow money from pessimists, they don't expect it back.

Half the people you know are below average.

Jokes of the day - Daily updated jokes. New jokes every day.
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Calculate the number 3366

NUMBERMANIA: Calculate the number 3366 using numbers [8, 5, 8, 5, 77, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 539

NUMBERMANIA: Calculate the number 539 using numbers [2, 4, 5, 5, 90, 357] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (5, 6, 7, 8, 9, 10, 48, 50, 52) 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: 15
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare
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Calculate the number 3266

NUMBERMANIA: Calculate the number 3266 using numbers [9, 4, 3, 6, 80, 193] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 1614

NUMBERMANIA: Calculate the number 1614 using numbers [6, 2, 6, 4, 23, 180] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 1951

NUMBERMANIA: Calculate the number 1951 using numbers [5, 2, 1, 4, 26, 279] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 6942

NUMBERMANIA: Calculate the number 6942 using numbers [8, 5, 3, 7, 19, 524] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Conrad Schlumberger

Born 2 Oct 1878; died 1936 .German geophysicist and petroleum engineer noted for the invention, in 1927, of a method of continuous electric logging of boreholes. Beginning in 1912, Conrad Schlumberger conceived the idea for electrical measurements to map subsurface rock bodies. He was first joined by his brother, Marcel, in 1919 for work together in Normandy, France, opening their first office in 1921. For three years from 1923, Schlumberger teams conducted geophysical surveys in Romania, Serbia, Canada, South Africa, Belgian Congo and the U.S. Electrical prospecting was used for the first time to map a subsurface oil-bearing structure - a salt dome in Romania. In 1927, the first electrical resistivity log was recorded in a well in Pechelbronn, France.
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