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Free PDF modules

Free PDF modules for exam preparation

Selected modules on the most frequently tested topics in TKA Mathematics SMP, UTBK, and CPNS SKD. Each module has a concept summary, worked examples, graded practice, and an answer key that has been checked again.

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TKA Mathematics SMP

16 pages

TKA SMP

Arithmetic with Real Numbers

Order of operations with powers and roots, sign rules for negative numbers, and the −3² versus (−3)² trap.

5 worked examples · 10 practice problems · answer key

16 pages

TKA SMP

Systems of Two Linear Equations

Substitution and elimination, choosing the faster method, and word problems about prices and ages.

5 worked examples · 10 practice problems · answer key

16 pages

TKA SMP

The Pythagorean Theorem

Finding the hypotenuse and the legs, Pythagorean triples, and word problems about ladders, diagonals, and distances.

5 worked examples · 10 practice problems · answer key

16 pages

TKA SMP

Mean, Median, Mode, and Range

Four data measures, medians of odd and even data sets, the effect of outliers, and choosing the most representative measure.

5 worked examples · 10 practice problems · answer key

UTBK (SNBT)

20 pages

UTBK · Quantitative Knowledge

Direct Proportion

Constant of proportionality, unit price, proportions, map scales, and testing whether a relationship is truly proportional.

5 worked examples · 10 practice problems · answer key

20 pages

UTBK · Quantitative Knowledge

Profit, Loss, Discounts, and Tax

Percent bases, multipliers, stacked discounts, tax after discount, and working back to the original price.

5 worked examples · 10 practice problems · answer key

22 pages

UTBK · Mathematical Reasoning

Turning Context into a Mathematical Model

Separating information and constraints, defining variables with their domains, building the model, and auditing a flawed one.

5 worked examples · 10 practice problems · answer key

CPNS SKD

84 pages

CPNS SKD · TIU

CPNS TIU 2026 Complete Module

All the General Intelligence Test (TIU) material for the CPNS SKD: verbal, arithmetic, number series, quantitative comparison, word problems, and figural reasoning, with quick strategies and a target time per question.

6 chapters · 52 worked examples · 60 SKD-format practice problems · answer key with explanations

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Mastered the module? Test it in a Try Out

Answer exam-style questions under real timing, then read the explanations and your per-topic report.