Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class

Examples

Example 1 (i)

Example 1 (ii)

Example 1 (iii) Important

Example 2 Important

Example 3

Example 4

Example 5

Example 6 – GST (Page Number - 124)

Example 7 (Page no. 126) Important

Example 8

Example 9

Example 10 Important You are here

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Question 2 Deleted for CBSE Board 2024 Exams

Question 3 Important Deleted for CBSE Board 2024 Exams

Question 4 Important Deleted for CBSE Board 2024 Exams

Question 5 Deleted for CBSE Board 2024 Exams

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Last updated at July 21, 2023 by Teachoo

Example 10 A TV was bought at a price of Rs 21,000. After one year the value of the TV was depreciated by 5% (Depreciation means reduction of value due to use and age of the item). Find the value of the TV after one year.TV was bought for Rs 21000 So, P = Rs 21000 Also, TV depreciated by 5% in one year Depreciated means value is decreased So, we Put a Minus sign in rate Rate = −5% Also, Rate is compounded So we use the formula A = P (𝟏+𝑹/𝟏𝟎𝟎)^𝒏 Here, P = 21000 R = –5 % N = Number of years = 1 Putting Values in Formula A = 21000 (𝟏+((−𝟓))/𝟏𝟎𝟎)^𝟏 A = 21000 (1−5/100) A = 21,000 × (1−1/20) A = 21,000 × ((20 − 1)/20) A = 21,000 × 𝟏𝟗/𝟐𝟎 A = 2100/2 × 19 A = 1050 × 19 A = 19950 Value of the TV after one year = Rs 19,950