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GMAT Quantitative Review — Algebra Practice Questions

This GMAT review consists of five Quantitative practice questions — all emphasizing algebra. Some questions are in the Problem-Solving format; others are in the Data-Sufficiency format.

NOTE: On the actual GMAT, 10-12 out of all 37 Quantitative questions will focus chiefly on algebra concepts. These questions will be mixed with arithmetic, geometry, and data-interpretation questions.

Instructions for Practice Questions:

  1. Review the test directions (below).

  2. Go to any of the five numbered practice questions. You can select an answer choice by clicking on a button.

  3. Scroll down the page for the correct answer and an analysis of the question. Click on "Directions" to return to this page.

  4. This is not a timed test. But if you want to simulate timed testing conditions, limit yourself to 10 minutes for all 5 questions.
TEST DIRECTIONS — QUANTITATIVE REASONING

Directions for Problem-Solving Questions
(Questions 1, 3 and 5)

Solve each problem and indicate the best of the answer choices given.

All numbers used are real numbers.

Directions for Data-Sufficiency Questions
(Questions 2 and 4)

Each Data-Sufficiency problem consists of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts, you must indicate whether:

  • statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked;

  • statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked;

  • BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked; but NEITHER statement ALONE is sufficient;

  • EACH statement ALONE is sufficient to answer the question asked;

  • statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

Numbers: All numbers used are real numbers.
 
Figures: A figure accompanying a data sufficiency problem will conform to the information given in the question, but will not necessarily conform to the additional information in statements (1 and 2).
 
Lines shown as straight can be assumed to be straight and lines that appear jagged can also be assumed to be straight.
 
You may assume that positions of points, angles, regions, etc., exist in the order shown and that angle measures are greater than zero.
 
All figures lie in a plane unless otherwise indicated.
 
Note: If the data sufficiency problem asks you for the value of a quantity the data given in the statements are sufficient only when it is possible to determine exactly one numerical value for the quantity.
Go to Practice Questions » 1  2  3  4  5