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PREP07 Test 2	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?
PREP07 Test 2	Just as the free computer operating system Linux has of late become even more crash resistant, so support for it within the computer industry has been growing.
PREP07 Test 2	A television manufacturer produces 600 units of a certain model each month at a cost to the manufacturer of $90 per unit and all of the produced units are sold each month. What is the minimum selling price per unit that will ensure that the monthly profit (revenue from sales minus the manufacturer's cost to produce) on the sales of these units will be at least $42,000?
PREP07 Test 2	Is the integer n a multiple of 15 ? (1) n is a multiple of 20. (2) n + 6 is a multiple of 3.
PREP07 Test 2	Exceeding even the figures predicted by the most optimistic financial analysts, the automobile company had earnings in the first quarter that more than doubled the previous quarter.
PREP07 Test 2	In May Mrs. Lee's earnings were 60 percent of the Lee family's total income. In June Mrs. Lee earned 20 percent more than in May. If the rest of the family's income was the same both months, then, in June, Mrs. Lee's earnings were approximately what percent of the Lee family's total income?
PREP07 Test 2	If $$x + y \neq0$$, what is the value of $$(ax+ay)\over(x+y)$$?(1) x = 4 and y = 5.(2) a = 6
PREP07 Test 2	Because Miranda, the smallest moon of Uranus, has a large number of different surface features, including craters, mountains, valleys, and fractures, some astronomers suggest that at one time repeated impacts broke the surface apart, and after which the fragments were subsequently rejoined because of mutual gravitational attraction.
PREP07 Test 2	What is the ratio of p to r ? (1) The ratio of p to 3r is 5 to 9.(2) The sum of p and r is 16.
PREP07 Test 2	For one toss of a certain coin, the probability that the outcome is heads is 0.6. If this coin is tossed 5 times, which of the following is the probability that the outcome will be heads at least 4 times?
PREP07 Test 2	Complex human traits such as artistic talent or social skill are likely to be shaped by thousands, if not tens of thousands, of the 80,000 or so genes in the human genome.
PREP07 Test 2	If A and B represent single digits in the correctly worked computation above, what is the value of A+B?
PREP07 Test 2	What is the value of $$a^4 - b^4$$ ?(1) $$a^2 - b^2 = 16$$(2) a + b = 8
PREP07 Test 2	Diesel engines burn as much as 30 percent less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gases that have been implicated in global warming.
PREP07 Test 2	A certain car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
PREP07 Test 2	The spectacular disintegration of a comet last year in full view of ground- and space-based telescopes provided new insights into how comets form and may thus force a rethinking of the role of comets in the delivery of organic compounds to the evolving Earth.
OG12 PREP07 Test 2	In the rectangular coordinate system, are the points (r,s) and (u,v) equidistant from the origin?(1)r+s=1(2)u = 1 - r and v = 1 - s
PREP07 Test 2	Strawberries, unlike picking bananas that are green and can be ripened artificially, must be picked when they are fully ripe, and they remain at peak flavor for only four or five days after that.
PREP07 Test 2	X and Y are sets of positive integers. Is the greatest integer in X greater than the greatest integer in Y ?(1) X is a set of 5 consecutive odd integers, each less than 20. (2) Y is a set of 3 consecutive even integers, each less than 15.
PREP07 Test 2	On his drive to work, Leo listens to one of three radio stations, A, B, or C. He first turns to A. If A is playing a song he likes, he listens to it; if not, he turns to B. If B is playing a song he likes, he listens to it; if not, he turns to C. If C is playing a song he likes, he listens to it; if not, he turns off the radio. For each station, the probability is 0.30 that at any given moment the station is playing a song Leo likes. On his drive to work, what is the probability that Leo will hear a song he likes?