BRAIN TEASERS
Math (page 106)

Math (page 106)

These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 1051 to 1060.
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (6, 7, 8, 9, 15, 16, 17, 20, 43, 44, 45, 90) 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: 2
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Find number abc

If 7283b + a988a = bc27b7 find number abc. Multiple solutions may exist.
Correct answers: 2
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Find number abc

If bc699 - 5aa20 = 2b5b9 find number abc. Multiple solutions may exist.
Correct answers: 1
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The first Hangman to...

“The first Hangman to switch to electricity from the traditional cord was a good conductor, with an alternate code of conduct!”

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Calculate the number 819

NUMBERMANIA: Calculate the number 819 using numbers [8, 5, 2, 8, 40, 649] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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Find number abc

If 473c4 + a49a4 = bb23b8 find number abc. Multiple solutions may exist.
Correct answers: 11
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Calculate the number 7724

NUMBERMANIA: Calculate the number 7724 using numbers [5, 7, 6, 4, 72, 992] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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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 (14, 15, 19, 27, 28, 32, 40, 41, 45, 95) 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: 3
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#brainteasers #math #magicsquare
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Find number abc

If b4c09 - cb9a2 = 2cc3a find number abc. Multiple solutions may exist.
Correct answers: 5
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#brainteasers #math
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Calculate the number 595

NUMBERMANIA: Calculate the number 595 using numbers [5, 2, 8, 2, 52, 571] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
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#brainteasers #math #numbermania
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Find number abc

If b51ca - ba6b7 = 444c find number abc. Multiple solutions may exist.
Correct answers: 4
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#brainteasers #math
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Cato Maximilian Guldberg

Born 11 Aug 1836; died 14 Jan 1902 at age 65.Norwegian chemist who, with his brother-in-law Peter Waage, formulated the law of mass action (1864), which details the effects of concentration, mass, and temperature on chemical reaction rates. The law states that the rate of a chemical change depends on the concentrations of the reactants. Thus for a reaction: A + B -> C the rate of reaction is proportional to [A][B], where [A] and [B] are concentrations. In 1870 Guldberg investigated the way in which the freezing point and vapor pressure of a pure liquid are lowered by a dissolved component. In 1890 he formulated Guldberg's law which relates boiling point and critical temperature.
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