Ratio and Proportion

This topic covers concepts such as Linking Ratio with Fractions, Duplicate Ratio, Compounded Ratio, Comparing Two Quantities by Division/by Taking the Ratio, Applications of Ratios in Real Life, Understanding Proportion as Equality of Ratios, etc.

This topic covers concepts such as Componendo and Dividendo Rule, Direct Proportion, Inverse Proportion, Proportion and Variation, Types of Proportion, Compound Proportion, Continued Proportion, Applications of Direct Proportions in Real Life, etc.

This topic covers the concept of Age Calculations.

This topic covers concepts such as Time, Motion, Speed of an Object, Distance Covered in a Journey, Time, Speed and Distance, Relationship between Time, Speed and Distance, Conversion between Kilometre Per Hour to Miles Per Second, etc.

This topic covers concepts such as Time and Distance, Problems on Trains, Time Taken in Train Problems, Relative Speed of Two Trains Moving in Same Direction, Relative Speed of Two Trains Moving in Opposite Direction, etc.

This topic covers concepts such as Boats and Streams, Speed of Boat, Speed of Boat Upstream, Speed of Boat Downstream, Speed of Boat in Still Water, Rate of Stream, Upstream Journey of Boat, Downstream Journey of Boat, etc.

This topic covers concepts such as Time and Work, Methods to Solve Time and Work, Unitary Method of Solving Time and Work, LCM Method of Solving Time and Work, Work Equivalence Method, Efficiency Method of Solving Time and Work, etc.

This topic covers concepts such as Chain Rule in Work and Time, Chain Rule Formula for Work and Time, Principles of Chain Rule, Direct Proportionality in Chain Rule, and Indirect Proportionality in Chain Rule.

This topic covers concepts such as Pipes and Cisterns, Role of Inlet and Outlet in Pipes and Cistern, Filling a Tank, Pipes and Cisterns, Emptying a Tank, Pipes and Cisterns, Formulas on Pipes and Cisterns, Time Taken to Fill a Tank, etc.

This topic covers concepts such as Partnerships in Business, Definition of Partnership, Types of Partnerships, Simple Partnerships, Compound Partnerships, Share of Profit for Simple Partnership, Share of Profit for Compound Partnership, etc.