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题目： Of the films Empty Set Studios released last year, 60% were comedies and the rest were horror films. 75% of the comedies were profitable, but 75% of the horror movies were unprofitable. If the studio made a total of 40 films, and broke even on none of them, how many of their films were profitable?

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题目： When Jessica withdrew $200 from her bank account, her account balance decreased by $$\frac{2}{5}$$. If she deposits an amount equal to$$\frac{ 1}{4}$$ of the remaining balance, what will be the final balance in her bank account?

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题目： If x + y = 17 and x – y = 5, what is the value of xy?

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题目： Robert's Ice Cream Shop sells ice cream at x cents a scoop. For an additional y cents, a customer can add 3 toppings to his or her sundae. How much would a sundae with 3 scoops and 3 toppings cost, in terms of x and y?

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题目： Working at a constant rate, a chocolate factory produces 144,000 chocolate truffles per day. If the factory operates 16 hours a day, how many truffles are produced every 5 minutes?

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题目： Joe needs to paint all the airplane hangars at the airport, so he buys 360 gallons of paint to do the job. During the first week, he uses 1/4 of all the paint. During the second week, he uses 1/5 of the remaining paint. How many gallons of paint has Joe used?

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题目： If (2x – 6)(x + 1) = 0 and (x + 1/2)(2x + 2) = 0, then x =

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题目： Last year, Company X made q dollars in profit. Half of the profit went to the company's founder. The rest was split evenly among his four other partners. In terms of q, how much did each of the other partners receive?

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题目： Scott takes a trip and drives 6 hours from Town X to Town Z at a rate of 50 miles per hour. On his way back, Scott drives 75 miles per hour and stops in Town Y which is midway between Town X and Town Z. How many hours does it take Scott to drive from Town Z to Town Y?

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题目： When the positive integer x is divided by 9, the remainder is 5. What is the remainder when 3x is divided by 9?

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题目： 120% of $$\frac{5}{8} =$$

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题目： On a fishing excursion, Jeannie keeps$$\frac{ 1}{4}$$ of the fish she catches and releases the remainder of the fish back into the lake. If $$\frac{2}{3}$$ of the fish she keeps are trout, and 1/3 of the fish she releases are trout, what proportion of the total number of fish she catches are trout?

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题目： What is 120% of$$\frac{ 1}{4} $$of 0.8?

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题目： Set S contains 4 numbers. The average of set S is 12. Exactly one number is added to set S, lowering the average of set S to 10. What is the number that was added to set S?

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题目： If 3x + 2y + 5z = 10 and 6x + 4y = 12, what is the value of z?