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题目： In 2004, Cindy had $4000 in a mutual fund account. In 2005, the amount in the same account was $5000. If the percent increase from 2004 to 2005 was the same as the percent increase from 2005 to 2006, how much did Cindy have in this account in 2006?

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题目： In Aldebaran Corporation, 35% of the managers have an MBA. If there are 42 managers with MBA, what is the total number of managers?

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题目： In the diagram above, JKL is an equilateral triangle. Point M is the midpoint of segment JL, and M is the center of a circle that passes through points J and L. The shaded regions in the diagram indicate all the regions inside the circle that are outside the triangle. What fraction of the total area of the circle is outside the triangle?

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题目： Given$$f(x)= {{x}\over{x+1}}$$, for what value k does $$f(f(k))=\frac{2}{3}?$$

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题目： If $$p ={ {1}\over{\sqrt{14}-\sqrt{13}}} $$and q = $${ {1}\over{\sqrt{14}+\sqrt{13}}} $$ then $$p^{2 }+ 2pq + q^{2} =$$

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题目： In the xy-coordinate system, a circle with radius $$\sqrt{30}$$ and center (2,1) intersects the x-axis at (k ,0). One possible value of k is

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题目： In a group of 100 adults, 75 percent of the women are left-handed. If there are 12 right-handed women in the group, how many men are in the group?

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题目： If the area of the outer square is $$4x^{2}$$, then the area of the inner square is

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题目： Solution Y is 40 percent sugar by volume, and solution X is 20 percent sugar by volume. How many gallons of solution X must be added to 150 gallons of solution Y to create a solution that is 25 percent sugar by volume?

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题目： What is the value of w in terms of x and y?Note: Figure not drawn to scale

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题目： The average (arithmetic mean) of y numbers is x. If 30 is added to the set of numbers, then the average will be x - 5. What is the value of y in terms of x ?

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题目： A computer can perform c calculations in s seconds. How many minutes will it take the computer to perform k calculations?

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题目： A container holds 4 quarts of alcohol and 4 quarts of water. How many quarts of water must be added to the container to create a mixture that is 3 parts alcohol to 5 parts water by volume?

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题目： Every day at noon, a bus leaves for Townville and travels at a speed of x kilometers per hour. Today, the bus left 30 minutes late. If the driver drives 7/6 times as fast as usual, she will arrive in Townville at the regular time. If the distance to Townville is 280 kilometers, what is the value of x?

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题目： A division of a company consists of seven men and five women. If three of these twelve employees are randomly selected as representatives of the division, what is the probability that the representatives will consist of two females and one male?