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Manhattan
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In his laws of motion, which now form the core of classical mechanics, Isaac Newton clearly and concisely introduced three important physical ideas: the concept of inertia, the relationship between force and acceleration, and the coupled nature of forces.
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Manhattan
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The number of United States citizens suffering from the flu increased significantly this year over last year. Since this increase did not occur among citizens of other countries, it is likely the result of a particular flu virus confined to the United States.Which of the following, if true, would cast the most serious doubt on the explanation for the increase given above?
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Manhattan
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Janet is now 25 years younger than her mother Carol. If in 6 years Janet's age will be half Carol's age, how old was Janet 5 years ago?
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Manhattan
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What is the sum of the multiples of 7 from 84 to 140, inclusive?
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Manhattan
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What is 120% of$$\frac{ 1}{4} $$of 0.8?
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Manhattan
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Set S contains 4 numbers. The average of set S is 12. Exactly one number is added to set S, lowering the average of set S to 10. What is the number that was added to set S?
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Manhattan
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Many computer databases impose formatting requirements, such as minimum numbers of capital letters or numerals, on users' passwords in an attempt to enhance security; ironically, these measures often make the passwords easier to guess, as users are more likely to select the simplest possible password that conforms to all the rules.
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Manhattan
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The author mentions the RJR Nabisco case most probably in order to emphasize which of the following points?
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Manhattan
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Studies have shown that an automobile that runs on a blend of 85% ethanol/15% gasoline gets better mileage than an otherwise similar car equipped with a gasoline engine. Many American legislators have concluded that an increase in tax incentives for ethanol production would lessen our dependence on foreign oil.Which of the following, if true, casts the most doubt upon the validity of the legislators' conclusion?
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PREP07 Test 2
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Is $$\frac{1}{p}>{r\over(r^2+2)}$$?(1) p = r(2) r > 0
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PREP07 Test 2
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What is the value of 3n - 4?(1) 6n – 10 = 30(2)$$\frac{n}{3} = \frac{20}{9}$$
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PREP07 Test 2
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Is the hundredths digit of the decimal d greater than 5 ?(1) The tenths digit of 10d is 7.(2) The thousandths digit of $$\frac{d}{10}$$ is 7.
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PREP07 Test 2
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Is the positive integer n an odd integer?(1) n + 4 is a prime number.(2) n + 3 is not a prime number.
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PREP07 Test 2
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If $$k \neq 0, 1, or -1$$, is $$ \frac{1}{k}$$ > 0 ?(1)$$ {1\over{(k-1)}} > 0$$(2)$$ {1\over{(k+1)}} > 0$$
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PREP07 Test 2
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Of the 4,800 voters who voted for or against Resolution K, 1800 were Democrats and 3,000 were Republicans. What was the total number of female voters who voted for Resolution K ?(1) 3/4 of the Democrats and 2/3 of the Republicans voted for Resolution K.(2)$$\frac{1}{3}$$ of the Democrats who voted for Resolution K and $$\frac{1}{2}$$ of the Republicans who voted for Resolution K were females.
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PREP07 Test 2
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If x $$\neq -y$$, is (x-y)/(x+y)>1?(1) x > 0(2) y < 0
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PREP07 Test 2
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Is x + y < 1 ?(1) x <$$\frac{8}{9}$$(2) y < $$\frac{1}{8}$$
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PREP07 Test 2
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A state legislature had a total of 96 members. The members who did not vote on a certain bill consisted of 25 who were absent and 3 who abstained. How many of those voting voted for the bill?(1) Exactly $$\frac{1}{3}$$ of the total membership of the legislature voted against the bill.(2) The number of Legislators who voted for the bill was 8 more than the total number who were absent or abstained.
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PREP07 Test 2
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If (x+y)/z = -2, is x positive?(1) z is negative.(2) y is positive.
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PREP07 Test 2
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Is $$x ≥3 $$?(1) $$x^2 – 9 = 0$$(2) x < 10
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