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PREP07 Test 2
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If eleven consecutive integers are listed from least to greatest, what is the average (arithmetic mean) of the eleven integers? (1) The average of the first nine integers is 7. (2) The average of the last nine integers is 9.
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PREP07 Test 2
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Over a certain time period, did the number of shares of stock in Ruth's portfolio increase? (1) Over the time period, the ratio of the number of shares of stock to the total number of shares of stocks and bonds in Ruth's portfolio increased. (2) Over the time period, the total number of shares of stocks and bonds in Ruth's portfolio increased.
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PREP07 Test 2
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Is |x | = y - z ? (1) x + y = z (2) x < 0
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PREP07 Test 2
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If x and y are positive integers such that x = 8y + 12, what is the greatest common divisor of x and y ?(1) x = 12u, where u is an integer. (2) y = 12z, where z is an integer.
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PREP07 Test 2
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What is the median of a certain set of 7 numbers? (1) 3 of the numbers are less than 10. (2) 4 of the numbers are greater than 10.
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PREP07 Test 2
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A certain bank charges a maintenance fee on a standard checking account each month that the balance falls below $1,000 at any time during the month. Did the bank charge a maintenance fee on Sue's standard checking account last month? (1) At the beginning of last month, Sue's account balance was $1,500.(2) During last month, a total of $2,000 was withdrawn from Sue's checking account.
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PREP07 Test 2
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The ratio of the amount of Alex's fuel oil bill for the month of February to the amount of his fuel oil bill for the month of January was 3/2. If the fuel oil bill for February had been $40 more, the corresponding ratio would have been 5/3 . How much was Alex's fuel oil bill for January?
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PREP07 Test 2
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If $1,000 was invested at an annual interest rate of 5.6 percent compounded annually, which of the following represents the amount the investment was worth after 3 years?
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PREP07 Test 2
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A certain candy manufacturer reduced the weight of Candy Bar M by 20 percent but left the price unchanged. What was the resulting percent increase in the price per ounce of Candy Bar M ?
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PREP07 Test 2
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Each unit of a certain product costs a manufacturer $9 to produce. The manufacturer sells the product in boxes of 50 units for $560 per box. How many boxes of the product does the manufacturer need to sell to yield a profit of $110,000 ?
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PREP07 Test 2
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 The table above shows the amount of waste material, in tons, recycled by each of five counties in a single year and the amount of waste material, also in tons, that was disposed of in landfills by the five counties in that year. Which county had the lowest ratio of waste material disposed of to waste material recycled in the year reported in the table?
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PREP07 Test 2
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A certain store found that last year the average (arithmetic mean) monthly sales from January through October was $120,000. In November and December, the monthly sales were 3 and 5 times, respectively, the average for the other 10 months. What was the store's average monthly sales last year?
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PREP07 Test 2
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A certain meter records voltage between 0 volts and 10 volts, inclusive. If the average (arithmetic mean) value of 3 recordings on the meter was 8 volts, what was the smallest possible recording, in volts?
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PREP07 Test 2
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 In the figure above, what is the value of x ?
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PREP07 Test 2
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Joshua and Jose work at an auto repair center with 4 other workers. For a survey on healthcare insurance, 2 of the 6 workers will be randomly chosen to be interviewed. What is the probability that Joshua and Jose will both be chosen?
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PREP07 Test 2
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 On the number line above, the segment from 0 to 1 has been divided into fifths, as indicated by the large tick marks, and also into sevenths, as indicated by the small tick marks. What is the least possible distance between any two of the tick marks?
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PREP07 Test 2
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What is the value of $$\sqrt{17}+\sqrt{47}$$, to the nearest whole number?
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PREP07 Test 2
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 In the figures above, if the area of the triangle on the right is twice the area of the triangle on the left, then in terms of s, S =
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PREP07 Test 2
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If n is a positive integer, which of the following must be an even integer?
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PREP07 Test 2
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9.4 9.9 9.9 9.9 10.0 10.2 10.2 10.5 The mean and the standard deviation of the 8 numbers shown are 10.0 and 0.3, respectively. What percent of the 8 numbers are within 1 standard deviation of the mean?
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