QUESTION 1Ordering of Algebraic Expressions
For a positive value of \(x\), which of the following could be the correct ordering of \(\frac{1}{x}\), \(2x\), and \(x^2\)?
I. \(x^2 < 2x < \frac{1}{x}\) II. \(x^2 < \frac{1}{x} < 2x\) III. \(2x < x^2 < \frac{1}{x}\)
I. \(x^2 < 2x < \frac{1}{x}\) II. \(x^2 < \frac{1}{x} < 2x\) III. \(2x < x^2 < \frac{1}{x}\)
QUESTION 2Integer Inequality Optimization
If \(p\) and \(q\) are integers such that \(q - 3p > 12\) and \(p - q > 38\), which of the following is the least possible value of \(pq\)?
QUESTION 3Polynomial Inequality with Integer Values
In an algebra practice session, how many integer values of \(x\) satisfy \(x(x+2)(x+4)(x+6) < 200\)?
QUESTION 4Integer Solutions in Linear Inequalities
In an aptitude practice set, positive integers \(x\) and \(y\) satisfy both inequalities \(2x + y < 10\) and \(x - y > -2\). How many ordered pairs \((x,y)\) are possible?
QUESTION 5Rational Inequality with Integer Values
In an algebra quiz, \(x\) is a positive integer. How many values of \(x\) satisfy the inequality \(\frac{x-2}{x^2-13x+36} \le 0\)?
QUESTION 6Integer Solutions in Quadratic Inequality
In a coordinate-grid based algebra problem, how many ordered pairs of integers \((x,y)\) satisfy the inequality \(x^2 + 4y^2 < 100\)?
QUESTION 7Absolute Value Inequality
In an algebra practice question, a real number \(x\) satisfies \((|x|-2)(x+5)<0\). Which of the following must be true?
QUESTION 8Integer Range from Quadratic Constraint
In an algebra practice question, integers \(x\) and \(y\) satisfy \(x^2 + y^2 < 46\) and \(0 < x \le 5\). Which of the following represents all possible values of \(y\)?
QUESTION 9Absolute Value Inequality
In an algebra practice question, a non-zero real number \(x\) satisfies \(\frac{x}{|x|}must be true?
QUESTION 10Inequalities and Absolute Values
If \(xy>0\) and \((x-2)(y+1)<0\), then which of the following must be true?
QUESTION 11Inequalities and Exponents
How many different pairs of integers \((a,b)\) exist such that \(2\le a\le 200\) and \(a+b>a^b\)?
QUESTION 12Polynomial Inequalities
How many positive integer values can x take that satisfy the inequality \((x-8)(x-10)(x-12)\cdots(x-100)<0\)?
QUESTION 13Inequalities with Modulus and Powers
For a non-zero real number \(t\), suppose \(\frac{t^4}{|t|}<\sqrt{t^2}\). Which of the following statements must always be true?
I. \(t<\pi\)
II. \(t^2<1\)
III. \(t^3>-8\)
I. \(t<\pi\)
II. \(t^2<1\)
III. \(t^3>-8\)
QUESTION 14Linear Inequalities and Optimization
A project manager assigns two types of resources, x and y, to a campaign. The performance score of the campaign is given by P = 2x + 5y. The allocation must satisfy the conditions x ≤ y, 3x − y ≥ 1, and 3x + y ≤ 5. What is the maximum possible value of P?
QUESTION 15Inequalities and Fractions
In a data-checking algorithm, two non-zero numbers p and q are used to create a ratio such that 0 < p/q < 1. Which of the following statements must always be true?
I. p²/q² < p/q
II. p²/q > p/q
III. (p + 5)/(q + 5) < 1
I. p²/q² < p/q
II. p²/q > p/q
III. (p + 5)/(q + 5) < 1
QUESTION 16Quadratic Inequalities
In a model-testing exercise, two integer parameters a and b are used to define two quadratic expressions. The first expression 2x² − ax + 2 is always positive for every real value of x, and the second expression x² − bx + 8 is always non-negative for every real value of x. What is the largest possible value of 2a − 6b?
QUESTION 17Quadratic Inequalities
A performance index for a machine setting x is given by x² − 7x − 2. For how many integral values of x is this index greater than −8 and less than 6?
QUESTION 18Linear Inequalities / Positive Integers
In a campus coding challenge, two positive integer scores p and q must satisfy the conditions 2p - 10 > -q and 3q - 20 < -p. If m is the minimum possible value of p and n is the maximum possible value of q, which of the following pairs represents (m, n)?
QUESTION 19Modulus Inequalities
How many integral values of \(x\) satisfy the inequality \(|3x-5|\le15\)?
QUESTION 20Rational Inequalities
If \(x>-6\) and \(\frac{1}{x-5}+\frac{1}{x+3}<0\), how many positive integral values of \(x\) satisfy the given inequality?
QUESTION 21Rational Inequalities
If \(x>-6\) and \(\frac{1}{x-5}+\frac{1}{x+3}<0\), what is the sum of all positive integral values of \(x\) satisfying the given inequality?