MathMania 2005
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A movie was attended by 500 people. Adults paid $10 each and children
paid $4 each. The total amount taken in was $4160. How many children
attended?
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A regular decagon is a polygon with 10 congruent sides and 10 congruent
interior angles. What is the degree measure of one of these interior
angles?
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A jar contains 7 blue balls, 9 red balls, and 10 white balls. One by
one, balls are drawn at random from the jar until either four balls of
the same color or at least two balls of each color have been drawn. What
is the largest number of balls that would have to be drawn?
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Find the next term in the sequence: 1, 1, 3, 7, 17, 41, 99, 239, 577,
...
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A magic square is a square array of numbers such that the sum of the
numbers in each row, in each column, and each of the two main diagonals
is the same. Complete the magic square shown below.
Here are the answers.