Simple Algebra Strategies for CAT Quant 2025

Tiyasa Khanra

Updated On: October 08, 2025 09:01 PM

Preparing for CAT 2025 Quant section? Clearing your fundamentals, using study materials and CAT preparation books, practising regularly, focusing on time management, and solving mock tests are some of the simple Algebra strategies for CAT Quantitative Aptitude beginners.
Simple Algebra Strategies for CAT Quant 2025

Simple Algebra Strategies for CAT Quantitative Aptitude Beginners: If you are beginning your CAT Quant preparation, start by strengthening your basics from Class 9-10 NCERT textbooks. Go through the CAT Quant syllabus and previous year question papers to understand which Algebra topics the maximum number of questions are asked from and create a study schedule allocating sufficient time to each. After this, memorize key formulas to recall them easily and reduce the time required to solve each problem. Additionally, practise the frequently asked Algebra topics regularly and master mental math, shortcut tricks, and approximation techniques for faster calculations.

Also Check - How to Crack Logarithms and Progressions Questions in CAT Quantitative Aptitude

Beginner-Friendly Algebra Strategies for the CAT Quantitative Aptitude Section

The first step to prepare for the Algebra section of CAT is to understand the CAT Quant syllabus and exam pattern. A total of 22 questions will be asked from the Quant section. The strategies to answer the CAT Algebra questions with highest accuracy have been provided below.

Strengthen Your Basics

Begin your CAT 2025 preparation by clearing your basic and fundamental concepts by referring to NCERT textbooks and foundational study materials. The topics you should focus on under CAT Algebra are Linear & Quadratic Equations, Logarithms, Inequalities, Progressions, Graphs, Functions, Algebraic Expressions to Polynomials. Gaining clarity on the basics and underlying concepts will help you make faster calculations with lesser errors. If you are using shortcuts or tricks, having a strong fundamental knowledge will help you use them correctly in twisted problems. Once you master the basics, you can move on to tricky and advanced concepts like functions, inequalities, and logarithms.

Learn Important Formulas

It is crucial to memorize key algebraic formulas and identities to solve the maximum number of problems accurately within the time limit. Note down all the formulas in one place to be able to revise them rapidly, retain them in your memory, and practise questions employing them repeatedly. Considering the time-pressure of the CAT exam, you must make use of formulas while solving direct or conceptual problems so that you can solve them in a few steps, rather than relying on lengthy calculations. Since the CAT has negative marking, it is feasible for you to recall key formulas and concepts for solving them directly and eliminate options quickly. Thus, you make less mistakes and consequently the number of correct attempts are increased in the CAT exam.

The key formulas that will help you solve Algebra problems efficiently for CAT are provided in the table below:

Topic

Formula

Logarithm

If x>0 and b is a constant (b≠1), then y=logbx if and only if x=by

Logarithmic Identities

  • Log b(xy) = log bx + log by
  • Log b(x/y) = log bx – log by
  • Log b(x^p) = p log bx
  • Log b1 = 0
  • Log bb = 1
  • Log b(x) = 1 / log x(b)
  • Change of base formula: log b(x) = log a(x) / log a(b)
  • Common logarithm: log10(x) = log(x)
  • Natural logarithm: log e(x) = ln(x)
  • logaxy = logax + logay
  • loga(x/y) = logax – logay
  • logaxm = mlogax
  • loganxm = m/nlogax
  • logax = 1/logxa
  • logaa = 1
  • loga1 = 0
  • alogam = m

Logarithm Inequality

  • If a > 1, p > 1 ⇒ logap > 0
  • If 0 < a <1, p > 1 ⇒ logap < 0
  • If a > 1, 0 < p < 1 ⇒ logap < 0
  • If p > a > 1 ⇒ logap > 1
  • If a > p >1 ⇒ 0 <logap <1
  • If 0 < a < p < 1 ⇒ logap < 1
  • If 0 < p < a < 1 ⇒ logap > 1
  • If logma > b ⇒ {a > mb, if m > 1 a < mb, if 0 < m < 1
  • logma < b ⇒ {a < mb, if m > 1a > mb, if 0 < m < 1
  • logpa > logpb ⇒ a ≥ b if base p is positive and >1 or a ≤ b if base p is positive and < 1 e., 0<p<1

Arithmetic Progression (AP)

  • Formula for n-th term: an = a1+(n−1)d
  • Sum of first n terms: Sn = n/2[2a1+(n−1)d]

Geometric Progression (GP)

  • Formula for n-th term: an = a1rn−1
  • Sum, when r≠1: Sn = a1− 1−rn / 1 - r
Harmonic Progression (HP)

Surds and Indices

  • Product rule: a^m × a^n = a^(m+n)
  • Quotient rule: a^m / a^n = a^(m-n)
  • Power rule: (a^m)^n = a^(m×n)
  • Negative exponent rule: a^(-m) = 1 / a^m
  • Rational exponent rule: a^(m/n) = nth root of a^m
  • Fractional exponent rule: a^(p/q) = qth root of a^p
  • Surds multiplication rule: √a × √b = √(ab)
  • Surds division rule: √a / √b = √(a/b)
  • Surds addition rule: √a + √b ≠ √(a+b)
  • Surds subtraction rule: √a – √b ≠ √(a-b)

Linear Equation

  • ax + b = c; Here a,b,c are constants while x is Unknown
  • a₁x+by+c₁ = 0 and a2x+ b₂y+c₂ = 0; a,b is not equal to 0
  • ???? = ???????? + ????
  • a1x + b1y = c1 and a2x + b2y = c2

Quadratic Equation

  • f(x) = 0
  • ax2+ bx + c = 0
  • D = (b2 - 4ac)
  • ax2+ bx + c = 0
  • x = (-b ± √(b2 - 4ac)) / 2a
  • x1 + x2 = -b/a
  • x1 * x2= c/a
  • x2 - (Sum of the roots) x + (Product of the roots) = 0
  • If a > 0 , then we can find the minimum value of the Quadratic equation as
  • y= -D / 4a D=>Discriminant
  • The value of x at the minima is x = (- b)/ (2a)
  • -If a < 0 then we can find the maximum value of the Quadratic equation as
  • y = - D/4a D => Discriminant
  • The value of x at the maxima is x = (- b) / (2a)

Refer to the Best Algebra Books for CAT

You must refer to the following Best books for CAT 2025 exam for strengthening fundamentals, gaining detailed knowledge of all Algebra topics of varying difficulty levels from solved examples, mastering analytical skills, and practising different topics exhaustively.

  • NCERT Textbooks (Classes 9 & 10) for building a strong foundational knowledge
  • How to Prepare for Quantitative Aptitude for the CAT by Arun Sharma
  • Quantitative Aptitude Quantum CAT by Sarvesh K Verma
  • Quantitative Aptitude for CAT by Nishit K. Sinha
  • Quantitative Aptitude for Competitive Examinations by Abhijit Guha

Although the CAT preparation books for Algebra have a comprehensive coverage of different topics, online platforms like Cracku, BodheePrep, and Quantifiers may prove beneficial in strengthening your preparation.

Practise Regularly and Solve Mock Tests

Practise questions from frequently asked Algebra topics like linear equations and simultaneous equations, Inequalities, AP & GP, Graphs & Functions, and solve online CAT 2025 mock tests to simulate the exam environment and understand the types of questions asked in the CAT exam from Algebra, increase your problem-solving speed, analyze your performance, review your strengths and weaknesses, and focus on improving the areas you struggle with or make maximum mistakes in.

Related Links:

CAT 2025 exam pattern CAT 2025 syllabus
CAT Quantitative Aptitude Preparation for Non-Engineers Tips to Manage Stress and Burnout During CAT Prep

CAT 2025 Quant Formula PDF Download

CAT Formula Sheet 2025 PDF

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