For Competitive Examinations(Bank P.O, railway, S.S.C, PoliceWith Solution Table of Contents: 1.Numbers 2. H.C.F and L.C.M 3. Decimal Fractions 4. Arithmetic , Geometric and Harmonic Progressions 5. Simplification 6. Square Roots and Cube Roots 7. Average 8. Problems on Numbers 9. Problems on Ages 10. Surds and Indices 11. Logarithms 12. Percentage 13. Profit and Loss 14. Ratio and Proportion 15. Partnership 16. Mixture 17. Compound Proportion 18. Time and Work 19. Pipes and Cistern 20. Time and Distance 21. Problems on Trains 22. Boats and Stream 23. Simple Interest 24. Compound Interest 25. True Discount 26. Bankers Discount 27. Area 28. Volume 29. Races 30. Calender 31. Clocks 32. Shares and Dividend 33. Permutations and Combinations 34. Probability 35. Trignometry 36. Series 37.Tabulation 38. Pie-Chart 39. Bar-Graphs 40. Line Graphs