BRAIN TEASERS
The Most Difficult Tasks (page 55)

The Most Difficult Tasks (page 55)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 541 to 550.
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Find number abc

If 9ca66 - 39b6b = a13c4 find number abc. Multiple solutions may exist.
Correct answers: 0
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Calculate the number 3587

NUMBERMANIA: Calculate the number 3587 using numbers [7, 4, 4, 9, 83, 718] 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 (7, 8, 11, 20, 21, 24, 49, 59, 66, 67, 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: 0
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#brainteasers #math #magicsquare

My Dad Scribbles

Three boys are in the schoolyard bragging about their fathers. The first boy says, "My Dad scribbles a few words on a piece of paper, he calls it a poem, they give him $50."
The second boy says, "That's nothing. My Dad scribbles a few words on a piece of paper, he calls it a song, they give him $100."
The third boy says, "I got you both beat. My Dad scribbles a few words on a piece of paper, he calls it a sermon. And, it takes eight people to collect all the money!"
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Find number abc

If 9c787 + bb2ab = c3a05c find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Calculate the number 2102

NUMBERMANIA: Calculate the number 2102 using numbers [8, 3, 1, 6, 23, 195] 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 3c8a6 + c660a = abc0c find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Calculate the number 8773

NUMBERMANIA: Calculate the number 8773 using numbers [5, 8, 8, 1, 97, 668] 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, 9, 10, 11, 12, 19, 22, 24, 60) 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
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If ac3a7 - cbb1c = c3a4a find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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Find number abc

If c1a97 - 1a55b = 47847 find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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Hans Geiger

Born 30 Sep 1882; died 24 Sep 1945 at age 62.Hans Wilhelm Geiger was a German physicist who introduced the Geiger counter, the first successful detector of individual alpha particles and other ionizing radiations. After earning his Ph.D. at the University of Erlangen in 1906, he collaborated at the University of Manchester with Ernest Rutherford. He used the first version of his particle counter, and other detectors, in experiments that led to the identification of the alpha particle as the nucleus of the helium atom and to Rutherford's statement (1912) that the nucleus occupies a very small volume in the atom. The Geiger-Müller counter (developed with Walther Müller) had improved durability, performance and sensitivity to detect not only alpha particles but also beta particles (electrons) and ionizing electromagnetic photons. Geiger returned to Germany in 1912 and continued to investigate cosmic rays, artificial radioactivity, and nuclear fission.
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