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Study Notes

Quantitative Aptitude Notes: Chapter-wise Free PDF

Number System, Percentage, Profit and Loss, Time and Work, Geometry, Algebra and more, with shortcut tricks and solved examples.

1

Percentage Notes for Competitive Exams

Complete percentage notes for UPSC CSAT, SSC and banking: fraction table, multiplier method, successive change, 13 solved question types, common traps and 12 FAQs.

8 min read PDF available Read note
2

Ratio and Proportion Notes: Formulas, Tricks and Solved Examples

Clear ratio and proportion notes for CSAT, SSC and banking: types of ratio, proportion rules, componendo-dividendo, ages, mixtures, partnership, coins and 12 FAQs.

9 min read PDF available Read note
3

Time and Work Notes for Competitive Exams

Easy time and work notes: LCM method, efficiency, worker leaving or joining, alternate days, wages, man-days-hours, pipes and cisterns, solved examples and 12 FAQs.

9 min read PDF available Read note
4

Profit, Loss and Interest Notes for Competitive Exams

Easy profit, loss, discount, simple and compound interest notes with formulas, shortcuts, CI vs SI, half-yearly compounding, solved examples and 12 FAQs.

9 min read PDF available Read note
5

Number System Notes for Competitive Exams

Complete number system notes: types of numbers, divisibility rules, primes, factors, HCF and LCM, remainders, unit digit cycles, important sums and 12 FAQs.

8 min read PDF available Read note
6

Average, Mixture and Alligation Notes

Average, mixture and alligation notes for SSC, banking and CSAT: average formulas, weighted average, mixture problems, alligation method, replacement formula, dishonest gain and 12 FAQs.

8 min read PDF available Read note
7

Mensuration Notes for Competitive Exams

Mensuration notes: area and perimeter table of 2D shapes, volume and surface area table of 3D solids, solved examples, percent change rules, melting and recasting and 12 FAQs.

8 min read PDF available Read note
8

Time, Speed and Distance Notes for Competitive Exams

Simple Time, Speed and Distance notes for UPSC CSAT, SSC and bank exams: core formulas, average speed, relative speed, trains, boats and streams, with solved examples, shortcut table and 12 FAQs.

9 min read PDF available Read note
9

Simplification and Approximation Notes

Simplification and approximation notes for SSC, bank exams and UPSC CSAT: BODMAS/VBODMAS rule, fractions, decimals, squares, cubes, surds and approximation tricks with solved examples and 12 FAQs.

7 min read PDF available Read note
10

Algebra Notes for Competitive Exams

Algebra notes for SSC CGL, CHSL, CDS and UPSC CSAT: important identities, linear equations, quadratic equations, roots, x + 1/x type questions and value-putting tricks with solved examples and 12 FAQs.

8 min read PDF available Read note
11

Geometry Notes for Competitive Exams

Geometry notes for SSC CGL, CDS and UPSC CSAT: lines and angles, triangle properties and centres, congruence and similarity, Pythagoras, circle theorems, quadrilaterals and polygons with solved examples and 12 FAQs.

9 min read PDF available Read note
12

Trigonometry Notes for Competitive Exams

Trigonometry notes for SSC CGL, CDS, NDA and CSAT: trigonometric ratios, standard angle table, identities, complementary angles, maximum-minimum values and heights and distances with solved examples and 12 FAQs.

8 min read PDF available Read note
13

Permutation and Combination Notes for Competitive Exams

Permutation and combination notes for SSC, bank exams, CDS and UPSC CSAT: counting principles, factorial, nPr and nCr formulas, arrangements of letters, circular arrangements and selection problems with solved examples and 12 FAQs.

8 min read PDF available Read note
14

Probability Notes for Competitive Exams

Probability notes for UPSC CSAT, SSC, bank exams and CDS: basic formula, sample space, coins, dice, playing cards, balls in a bag, addition and multiplication rules, complementary events and odds with solved examples and 12 FAQs.

8 min read PDF available Read note
15

Data Interpretation Notes for Competitive Exams

Data interpretation notes for SSC, bank exams and UPSC CSAT: types of DI sets, percentage change, growth rate, ratio and average calculations, pie chart degree conversion, caselets and approximation shortcuts with solved examples and 12 FAQs.

8 min read PDF available Read note
16

Problems on Ages and Partnership Notes

Problems on ages and partnership notes for SSC, bank exams and UPSC CSAT: ratio method for ages, present-past-future framework, simple and compound partnership, working and sleeping partners with solved examples and 12 FAQs.

8 min read PDF available Read note
17

Arithmetic and Geometric Progression Notes

Arithmetic and geometric progression notes for SSC, CDS, NDA and UPSC CSAT: nth term, sum of n terms, arithmetic and geometric mean, infinite GP, sum of natural numbers, squares and cubes with solved examples and 12 FAQs.

7 min read PDF available Read note
18

Indices, Surds and Logarithms Notes for Competitive Exams

Quantitative aptitude notes on indices, surds and logarithms: laws and formulas, rationalisation, comparing surds, log rules, value tables, solved examples and 12 FAQs.

7 min read PDF available Read note
19

Pipes and Cisterns, Boats and Streams Notes for Competitive Exams

Quantitative aptitude notes on pipes and cisterns and boats and streams: formulas, solved examples, tricks, common mistakes, practice questions and 12 FAQs for SSC, banking and railway exams.

8 min read PDF available Read note
20

Quadratic Equations Notes and Tricks for Banking and Competitive

Quadratic equation notes for banking and competitive exams: factorisation, formula, discriminant, sign shortcuts, x and y comparison method, word problems, solved examples and 12 FAQs.

9 min read PDF available Read note