Chapter 8 – Comparing Quantities

3. The compound interest on Rs 50,000 at 4% per annum for 2 years compounded annually is 000 at 4% per annum for 2 years compounded annually is 3. The compound interest on Rs 50 August 3, 2021 Category: Chapter 8 - Comparing Quantities , Maths , NCERT Class 8 ,

2. Suppose a certain sum doubles in 2 years at r % rate of simple interest per annum or at R% rate of interest per annum compounded annually. We have 2. Suppose a certain sum doubles in 2 years at r % rate of simple interest per annum or at R% rate of interest per [...]

1. Suppose for the principal P, rate R% and time T, the simple interest is S and compound interest is C. Consider the possibilities. 1. Suppose for the principal P rate R% and time T the simple interest is S and compound interest is C. Consider the possibilities. August 3, 2021 Category: Chapter 8 - [...]

Example 14 : Find the compound interest on Rs 48,000 for one year at 8% per annum when compounded half yearly. 000 for one year at 8% per annum when compounded half yearly. Example 14 : Find the compound interest on Rs 48 August 1, 2021 Category: Chapter 8 - Comparing Quantities , Maths , [...]

Example 13 : Vishakha offers a discount of 20% on all the items at her shop and still makes a profit of 12%. What is the cost price of an article marked at Rs 280? Example 13 : Vishakha offers a discount of 20% on all the items at her shop and still makes a [...]

Example 12 : A number is increased by 20% and then it is decreased by 20%. Find the net increase or decrease per cent. Example 12 : A number is increased by 20% and then it is decreased by 20%. Find the net increase or decrease per cent. August 1, 2021 Category: Chapter 8 - [...]

Example 11 : Overhead charges, if any, are sometimes included in the cost price. are sometimes included in the cost price. Example 11 : Overhead charges if any August 1, 2021 Category: Chapter 8 - Comparing Quantities , Maths , NCERT Class 8 ,

Example 10 : After allowing a discount of 15% on the marked price of an article, it is sold for Rs 680. The marked price of the article is Rs 800. Example 10 : After allowing a discount of 15% on the marked price of an article it is sold for Rs 680. The marked [...]

Example 9 : Arnav buys a book costing Rs 600. If the rate of sales tax is 7%, then the total amount payable by him is Rs 642. Example 9 : Arnav buys a book costing Rs 600. If the rate of sales tax is 7% then the total amount payable by him is Rs [...]

Example 8 : When the interest is compounded half yearly, the number of conversion periods in a year is four. Example 8 : When the interest is compounded half yearly the number of conversion periods in a year is four. August 1, 2021 Category: Chapter 8 - Comparing Quantities , Maths , NCERT Class 8 [...]