Prachi's Blog

Page 7 of 37 with more practical notes and routines for commerce students.

A brass path dips below a teal glass plane between two glowing boundary rings and rises above it on either side

Quadratic Inequalities: Sign Charts and Endpoint Rules

Solve quadratic inequalities with the method of intervals, clear sign charts, worked examples, endpoint checks, repeated roots and practice answers.

11th

Teal railway carriages joined in one brass cradle beside a second track where terracotta carriages keep them apart

Restricted Permutations: Together, Apart and Never Together

Learn restricted permutations with block and gap methods, repeated letters, worked examples, and the crucial difference between not all together and no two adjacent.

11th

Brass gates regulate a teal river flowing through an orchard, symbolising credit control that supports growth

CRR, SLR, Repo Rate, Bank Rate and OMO Explained

Understand how RBI credit control works with a clear comparison of CRR, SLR, repo rate, Bank Rate and open market operations, solved examples and practice.

12th
Economics

Two baskets in brass time rings weave threads into a shared golden lens.

Laspeyres, Paasche and Fisher Index Numbers Made Simple

Learn which weights Laspeyres, Paasche and Fisher use, solve a complete numerical, and avoid common formula and interpretation mistakes.

11th
Economics

Two ivory stairways approach a shared amber orb without touching it

Limits at a Point: Left-Hand, Right-Hand and 0/0 Forms

Understand left-hand and right-hand limits, solve 0/0 forms, and distinguish limits from function values with worked examples and practice answers.

11th
12th

A brass sundial sculpture with copper rods, a teal sail, an upright mast, and a shadow on an ivory rail

Dot Product, Cross Product, and Projection: Which to Use?

Choose the right vector formula for angles, areas, perpendicular vectors, and projections, with solved examples, sign checks, and practice answers.

12th

Level brass balances holding different glass fruits along separate contours of a terraced ceramic hillside

Indifference Curve Properties: MRS and Why Curves Cannot Cross

Understand indifference curve properties with MRS calculations, clear diagrams, a non-intersection proof, special cases, and solved practice questions.

11th
12th
Economics

A flexible copper basket and a rigid ivory basket hold glass pears above a pool of coins

Price Elasticity of Demand: Which Method Should You Use?

Choose the percentage, total expenditure, or geometric method of price elasticity of demand with solved examples, diagrams, practice questions, and FAQs.

11th
12th
Economics

Copper bellows and narrowing ceramic walls put two kinds of pressure on a glowing amber balloon

Demand-Pull vs Cost-Push Inflation: Causes and Policy

Understand demand-pull and cost-push inflation with clear examples, AD-AS graph guidance, solved cases, policy trade-offs, and practice questions.

12th
Economics

An accordion-roof workshop expands beside a rigid stone workshop as teal pottery emerges into warm sunlight

Elasticity of Supply: Percentage and Geometric Methods

Calculate price elasticity of supply with solved numericals, labeled diagrams, the intercept rule, midpoint comparisons, and practice questions.

11th
12th
Economics

Copper threads become an orderly grid in an ivory loom, with an amber bead at a corner enclosed by brass rails

Linear Programming Word Problems: Variables and Constraints

Turn linear programming word problems into clear models with decision variables, objective functions, constraints, worked examples, and practice answers.

12th

Parcels returning between two ceramic shops on an open ledger, showing one return from two perspectives

Sales Return vs Purchases Return Books: Debit and Credit Notes

Learn sales return and purchases return books with debit note and credit note rules, solved formats, ledger postings, trade discounts, and practice questions.

11th
Accounts

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