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应用题
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A certain one-day seminar consisted of a morning session and an afternoon session. If each of the 128 people attending the seminar attended at least one of the two sessions, how many of the people attended the morning session only?(1) $$\frac{3}{4}$$ of the people attended both sessions.(2) $$\frac{7}{8}$$ of the people attended the afternoon session.
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PREP07 Test 1
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A bookstore that sells used books sells each of its paperback books for a certain price and each of its hardcover books for a certain price. If Joe, Maria, and Paul bought books in this store, how much did Maria pay for 1 paperback book and 1 hardcover book?(1) Joe bought 2 paperback books and 3 hardcover books for $12.50.(2) Paul bought 4 paperback books and 6 hardcover books for $25.00.
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PREP07 Test 1
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Is the product of a certain pair of integers even?(1)The sum of the integers is odd.(2)One of the integers is even and the other is odd.
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PREP07 Test 1
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Is x to the right of -5 on the number line?(1)x is to the right of -7 on the number line.(2)x is between -4 and -3 on the number line.
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PREP07 Test 1
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A certain bag contains red, blue, and green marbles. What is the ratio of the number of green marbles to the number of red marbles in the bag?(1)The number of blue marbles in the bag is 2 times the number of green marbles in the bag.(2)The number of blue marbles in the bag is 3 times the number of red marbles in the bag.
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PREP07 Test 2
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Juan bought some paperback books that cost $8 each and some hardcover books that cost $25 each. If Juan bought more than 10 paperback books, how many hardcover books did he buy?(1) The total cost of the hardcover books that Juan bought was at least $150.(2) The total cost of all the books that Juan bought was less than $260.
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Harvey teaches a certain number of biology students in 2 classes, K and L. He can divide the students in class K into 7 groups of n students each. He can divide the students in class L into 6 groups of p students each with 1 student left over. How many students are in class L ?(1) n = p(2) There are 5 more students in class K than in class L.
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If n is a positive integer, what is the value of n ? (1) When n is divided by 3, the remainder is 2. (2) When $${n}^{2}$$ is divided by 3, the remainder is 1.
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At an auction, each of the bids on a certain clock after the first bid was $100 greater than the immediately preceding bid. What was the amount of the last bid on the clock?(1) The first bid on the clock was $450.(2) The fourth bid on the clock was $300 less than the amount of the last bid.
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Each of 20 parents chose one of five days from Monday through Friday to attend parent-teacher conferences. If more parents chose Monday than Tuesday, did at least one of the parents choose Friday?(1) None of the five days was chosen by more than 5 parents.(2) More parents chose Monday than Wednesday.
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What is the probability that event E or event F or both will occur?(1) The probability that event E will occur is 0.6.(2) The probability that event F will occur is 0.4.
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OG16 OG17 OG18 OG19 OG20 OG2022
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For a certain car repair, the total charge consisted of a charge for parts, a charge for labor, and a 6 percent sales tax on both the charge for parts and the charge for labor. If the charge for parts, excluding sales tax, was $50.00, what was the total charge for the repair?(1) The sales tax on the charge for labor was $9.60.(2) The total sales tax was $12.60.
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PREP07 Test 2
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If q is a positive integer less than 17 and r is the remainder when 17 is divided by q, what is the value of r?(1) q > 10(2) $${q}={2}^{k}$$, where k is a positive integer.
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At a fruit stand yesterday, the price of each apple was $0.10 more than the price of each orange. What was the total revenue from the sale of oranges at the fruit stand yesterday?(1) The number of oranges sold at the fruit stand yesterday was 5 more than the number of apples.(2) The total revenue from the sale of apples at the fruit stand yesterday was $15.00
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Is $$({X}+{Y})^{3}$$ an even integer?(1) X and Y are integers.(2) XY=9
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Linda purchased 3 books at a book fair. What was the median price of the 3 books?(1) The average (arithmetic mean) price of the 3 books was $1.5(2) The price of one of the 3 books was $1.5
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For all integers x and y, the operation $$\Delta $$ is defined by $${x}\Delta{y}=({x}+{2})^{2}+({y}+{3})^{2}$$. What is the value of integer t?(1)$$ t \Delta 2 = 74$$(2) $$2 \Delta t = 80$$
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If x and y are nonzero integers, is 18 a factor of $${x}{y}^{2}$$?(1) x is a multiple of 54.(2) y is a multiple of 6.
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A certain circle in the xy-plane has its center at the origin. If P is a point on the circle, what is the sum of the squares of the coordinates of P?(1) The radius of the circle is 4.(2) The sum of the coordinates of P is 0.
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In triangle PQR, the measure of angle P is 30° more than twice the measure of angle Q. What is the measure of angle R?(1) PQ = QR(2) The measure of angle P is 78°.
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