# NCERT Solutions for Class 8 Maths Chapter 8 Comparing Quantities This chapter explains the comparison between the rise and decrease of percentages, market value, sales value, rebate, and so forth. The part manages a significant idea that can be utilised in everyday life, Interest. Students find out about Simple Interest, compound interest determined half-yearly, quarterly, monthly or yearly, and considerably more. There are three activities in this part which helps the students in learning the idea of Comparing Quantities.

Fractions and Ratios
A fraction is represented by a part of a whole consisting of numerators and denominators, and also it is the division of two same quantities.

Finding an Increase or Decrease Percentage in Situations
Finding a new number when there is a percentage increase is calculated as follows: New number = original number + (increase in percentage × number)

Finding SP without Finding Discount Percentage
A reduction in the market price is known as a discount. If the discount is given in numeric values, it is calculated by Discount = Marked price – Sale price.

Estimation of Amounts
Estimation of amounts is considered when there is a discount or hike on the marked price.

Sales Tax / VAT.
Sales tax or Value-Added Tax (VAT) is the tax paid to the government on the transaction of a certain item, and it is added to the bill amount. Sales tax or VAT = Tax % of the Selling price Billing Amount = Selling price + VAT.

SI
Simple Interest, commonly known as SI, is the extra amount taken on a loan, where the principal quantity will be fixed for a particular period of time.

Calculating CI
Compound Interest, commonly known as CI, is calculated on the principal and the interest for the previous period.

Application of Formula of CI
1. Calculating the growth rate of population (increase or decrease).
2. 2. Calculating the change in the price of an item (increase or decrease).

## Key Features of Aakash's NCERT Solutions

• Equation-solving gets easier and fast-paced with the sums' solution's answers in the chapter's exercise.
• Even the most difficult portions get easy with the answers and definitions provided in this study material.

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