MATH BRAIN TEASERS

Fun Facts (Hints)

Mathematics has an extensive history in just about every culture or civilized society known to man. Listed below are some cool facts to get those math juices flowing:
  • In 1852 mathematician JJ Sylvester established the "theory of algebraic invariants."
  • In 1995 math great Andrew Wiles, proved "Fermat's Last Theorem."
  • The first decimal number system is said to have been invented in Ancient Egypt around 5000BC.
  • The Ancient Mayan civilization located in Central America is one of the only cultures in the recorded history of the world to use a place-value number system.
  • The American Mathematical Society was formed in the late months of 1888 in New York.
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    Finding The Value Riddle

    Hint:
    Horse = 10
    Cowboy-Boot = 1
    HorseShoe= 2
    The Last equation = 21

    Detailed Explanation :
    Equation1:
    3Horse = 30
    => Horse = 10 .....(1)

    Equation2:
    1Horse + 2HorseShoe + 2HorseShoe = 18
    10 + 4HorseShoe =18
    HorseShoe = 2 .....(3)

    Equation3:
    2HorseShoe - 2Cowboy-Boot = 2
    4 - 2Cowboy-Boot = 2
    => Cowboy-Boot = 1 ... (2)

    Equation4:
    Cowboy-Boot+Horse*HorseShoe = 1+10*2
    =>21
    Did you answer this riddle correctly?
    YES  NO  

    Joe's 10 Coins Riddle

    Hint:
    A half-dollar, a quarter, four dimes, and four pennies.
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    Bat And Ball Riddle

    Hint: The answer isn't 10 cents.
    Here's the solution:

    Although $1.00 + $0.10 does equal $1.10, if you take $1.00 $0.10 you get $0.90, but the problem requires that the bat costs $1 more than the ball.

    So, the ball must cost $0.05, and the bat must cost $1.05 since $1.05 + $0.05 = $1.10

    ---

    Still not convinced? You can use algebra to solve the problem:

    First, lets set up the equation:

    x + ($1.00 + x) = $1.10

    $1.00 + 2x = $1.10

    2x = $1.10 $1.00

    2x = $0.101

    Finally, solve for x:

    x = $0.05

    Check your work:

    x + ($1.00 + x) = $1.10, so

    $0.05 + ($1.00 + $0.05) = $1.10
    Did you answer this riddle correctly?
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    At The Hardware Store Riddle

    Hint:
    Prices quoted were for house numbers at 12 cents per number. A number'6' cost me 12 cents.
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    Magic Word Riddle

    Hint: Count the letters. The number of letters in each individual word make up an important number.
    Pi (number of letters in each word of the riddle)
    3,1 4 1 5 9
    2 6 5 3 5 8
    9 7 9
    3 2 3 8 4 6
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    Combination Value Riddle

    Hint:
    A = 1
    B = 7
    C = 4
    D = 16
    E = 14
    F = 5
    G = 9
    H = 21
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    Running Hot And Cold

    Hint:
    Blood
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    Subtracting 10 From 100 Riddle

    Hint:
    Once. Next time you would be subtracting 10 from 90.
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    Flying Superman Riddle

    Hint:
    17.083333 minutes!
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    17 Sheep Riddle

    Hint:
    9. If all but 9 died, there are 9 remaining live sheep.
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