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PREP07 Test 2
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Helen, Jim, and Ivan each purchased some books at a bookstore. Helen purchased 4 books and Jim purchased 1 book. If the 3 people purchased an average (arithmetic mean) of 2 books per person, how many books did Ivan purchase?
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PREP07 Test 2
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 On the number line shown, the tick marks are equally spaced. What is the value of y - x ?
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PREP07 Test 2
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 The table shows the quantities of eggs, flour, and sugar used by a certain baker to make one cake of each of the three different types. If the baker had 24 eggs, 30 cups of flour, and 10 cups of sugar available and had to make 2 angel food cakes and 1 devil's food cake, what is the maximum number of pound cakes that the baker could make with the remaining ingredients?
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PREP07 Test 2
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Last semester an assistant was paid a total of $800 for grading papers in a class of 37 students. If each student handed in 7 papers and the assistant graded all of these papers, then, to the nearest whole dollar, the assistant's pay per paper graded was
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PREP07 Test 2
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Which of the following is closest to $$\sqrt{8^2-4^2}$$
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PREP07 Test 2
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An automobile manufacturer offers a station wagon with either a 6-cylinder engine or a 4-cylinder engine and with either a manual transmission or an automatic transmission. A trailer hitch is also offered, but only on a station wagon with a 6-cylinder engine. How many combinations of the five options listed does the manufacturer offer for its station wagon?
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Manhattan
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A retailer bought a shirt at wholesale and marked it up 80% to its initial retail price of $45. By how many more dollars does he need to increase the price to achieve a 100% markup?
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Manhattan
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If x is an integer, then x(x – 1)(x – k) must be evenly divisible by three when k is any of the following values EXCEPT
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Manhattan
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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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300难题
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Ifn =$$p^{2}$$and p is a prime number greater than 5,what is the units digit of $$n^{2}$$ ?
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OG21 OG2022
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3P5
$$\frac{+4QR}{8S4}$$
In the correctly worked addition problem shown, P, Q, R, and S are digits. If Q = 2P, which of the following could be the value of S?
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181215
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Choose at least one element from the set {1,4}, {2,7} respectively. How many combinations are there in total?
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181215
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d is a non-zero integer. What is the reminder of a positive integer d340 divided by 8?
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181215
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Someone practices calligraphy. It takes him three hours to write the first page and one hour to write each page starting from the second page. His average time of writing a page is 1.25h. How many pages does he practice?
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181215
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f(x)=-2$$(x-5)^{2}$$+3. What is the maximum value of f(x)?
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181215
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What's the hundred-digit number of 13467*$$\frac{10^{6}-10^{4}}{10^{5}}$$？
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181215
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How many seconds does it take to drive 132 feet at an average speed of 50 miles/h?
(1 mile=5280 feets, 1h=3600s)
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第一期
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If n is a positive integer, what is the remainder when $$3^{8n+3}+2$$ is divided by 5？
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190113 还原机经选题: 文字题&几何
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According to the picture, the bottom radius of the conical funnel is R and the height is 16. A person pours water into this funnel, and the conical bottom radius of water is r. r/R = 3/4. What is the height of the cone formed by water?
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190603
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Given that x is a positive number and 2/(x+2)+3/(x+3)>1, what is the possible value of x2?
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