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OG18 OG19 OG20
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A worker carries jugs of liquid soap from a production line to a packing area, carrying 4 jugs per trip. If the jugs are packed into cartons that hold 7 jugs each, how many jugs are needed to fill the last partially filled carton after the worker has made 17 trips?
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OG19-数学分册
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Points A, B, C, and D, in that order, lie on a line. If AB= 3 cm, AC= 4 cm, and BD= 6 cm, what is CD, in centimeters?
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OG19-数学分册
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How many integers x satisfy both $$2 < x\leq 4$$ and $$ 0\leq x \leq 3$$?
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OG19-数学分册
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A certain bridge is 4,024 feet long. Approximately
how many minutes does it take to cross this
bridge at a constant speed of 20 miles per hour?
(1 mile= 5,280 feet)
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Ready4
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If n is a positive integer and  which of the following could NOT be a value of k?
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If $$\frac{k}{60125}={0.001}$$, what is the units digit of k?
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If 30!/10! is written as the product of consecutive integers, the largest of which is 30, what is the smallest of the integers?
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 The table above shows the results of a recent school board election in which the candidate with the higher total number of votes from the five districts was declared the winner. Which district had the greatest number of votes for the winner?
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For any number x, [ x ] denotes the greatest integer less than or equal to x. What is the value of $$[-\frac{10}{4}]$$
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An equal number of desks and bookcases are to be placed along a library wall that is 15 meters long. Each desk is 2 meters long, and each bookshelf is 1.5 meters long. If the maximum possible number of desks and bookcases are to be placed along the wall, then the space along the wall that is left over will be how many meters long?
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For each value of y greater than $$2\sqrt{3}$$, the function f(x) is such that the equation f(x) = y has the form $$x=({y^2+12\over{y}})$$Select one value for a and one value for b such that the given information implies f(a) = b. Make only two selections, one in each column.
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PREP07 Test 1
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$${(1+0.0001)}\over{(0.04+10)}$$The value of the expression above is closest to which of the following?
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PREP07 Test 2
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For every order, a certain mail-order company charges a shipping fee of $3 plus an additional $2 if the value of the order is over $50 but not over $100 or an additional $3 if the value of the order is over $100. How much greater are the total shipping fees for 2 orders of $75 each than the total shipping fee for 1 order of $150 ?
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PREP07 Test 2
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If w, x, and y are consecutive odd positive integers and w < x < y, which of the following could be equal to y - x - w ?
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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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One morning Emily recorded the time that it took to read each of her e-mail messages. The times, in seconds, were 32, 18, 20, 29, and 21. How many seconds greater was the average (arithmetic mean) time than the median time?
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PREP07 Test 1
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Which of the following is closest to the value of $${999}\over{100+{\frac{1}{999}}}$$?
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PREP07 Test 2
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The temperatures in degrees Celsius recorded at 6 in the morning in various parts of a certain country were 10, 5, -2, -1, -5, and 15. What is the median of these temperatures?
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PREP07 Test 2
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Of the 100 passengers who entered a railroad station, 10 passengers had 4 pieces of luggage each, 20 had 5 pieces of luggage each, 50 had 2 pieces of luggage each, and the rest had no luggage. What was the average (arithmetic mean) number of pieces of luggage per passenger?
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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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