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Chapter 9 of 26
Study Plan

Instalment Buying

NIOS · Class 10 · Maths

Step-by-step guide to study Instalment Buying in NIOS Class 10 Maths. Topics to cover, practice strategy, and time allocation.

45 questions20 flashcards5 concepts

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A diagram illustrating the relationship between Cash Price, Cash Down Payment, Instalments, and Interest in an instalment buying scheme. Show an item (e.g., a TV) being purchased.
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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas, and key concepts.

2
Day 3

Practice Problems

Solve textbook exercises and additional practice questions. There are 45 questions available for this chapter.

3
Day 4

Revise & Test

Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding. Mark weak areas for re-revision.

4
Day 7

Spaced Revision

Revisit Instalment Buying after a week. Use flashcards for quick recall. Solve previous year questions from this chapter.

What to Focus On

  • Cash price is the immediate full payment amount
  • Cash down payment reduces the balance to be paid in instalments
  • Interest is charged on the outstanding balance during the payment period

  • Interest is calculated on the reducing balance method
  • Each month's principal is the balance at the start of that month
  • Formula: Total Principal × (r/100) × (1/12) = Interest paid

  • Set up algebraic equation with instalment amount as unknown
  • Principal decreases each month as instalments are paid
  • Use the pattern: nth month principal = Balance - (n-1) × instalment

Common Mistakes to Avoid

The interest rate given in the problem can be directly applied using Simple Interest formula I = PRT without considering the changing principal balance

Cash down payment should be included when calculating the principal for interest computation

All instalments are calculated using the same principal amount throughout the payment period

Memory Tips

Cash Down Payment Definition

Simple Interest Formula for Instalments

Finding Rate of Interest Steps

Balance Calculation Each Month

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Frequently Asked Questions

What are the important topics in Instalment Buying for NIOS Class 10 Maths?
Instalment Buying covers several key topics that are frequently asked in NIOS Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Instalment Buying — NIOS Class 10 Maths?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for NIOS Class 10 Maths.