BRAIN TEASERS
Brain Teasers (page 77)

Brain Teasers (page 77)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 761 to 770.
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Calculate the number 4307

NUMBERMANIA: Calculate the number 4307 using numbers [7, 7, 1, 9, 89, 508] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania
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Find number abc

If 80370 + 8b77a = c65cba find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 1
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#brainteasers #mastermind

Tony Roberts: Old Grandmother

My grandmother is older than the word supper.
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Calculate the number 6550

NUMBERMANIA: Calculate the number 6550 using numbers [2, 7, 1, 5, 19, 941] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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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 (6, 7, 8, 25, 26, 27, 45, 54, 55, 56) 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: 0
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#brainteasers #math #magicsquare
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Find number abc

If b7ba1 - c57a5 = c1696 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 6179

NUMBERMANIA: Calculate the number 6179 using numbers [6, 7, 1, 8, 72, 941] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 5bc0b - a03c2 = cb067 find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 0
CHECK ANSWER
#brainteasers #mastermind
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The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
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Alice Hamilton

Died 22 Sep 1970 at age 101 (born 27 Feb 1869). American pathologist known for her research on industrial diseases. By actively publicizing the danger to workers' health of industrial toxic substances, she contributed to the passage of workmen's compensation laws and to the development of safer working conditions. In 1911, she accepted an appointment as special investigator for the U.S. Bureau of Labor. These duties led her into field investigations of mines, mills, and smelters. Concentrating at first on lead, the most widely used industrial poison, she compiled statistics dramatically documenting the high mortality and morbidity rates of workers. She later did the same for aniline dyes, picric acid, arsenic, carbon monoxide, and many other industrial poisons. Hamilton died when 101 yrs old.
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