हिंदी

Grace Fashion Boutique purchased a sewing machine at Rs.25,000/-. After 3 years machine was sold at a depreciated value Rs.18,225/- Find the rate of depreciation.

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प्रश्न

Grace Fashion Boutique purchased a sewing machine at Rs.25,000/-. After 3 years machine was sold at a depreciated value Rs.18,225/- Find the rate of depreciation.

योग
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उत्तर

Given, purchase price of sewing machine = V = ₹ 25,000/-

Selling price of machine = D.V. = ₹ 18,225/-

Number of years = n = 3 years

By using, D.V. = V`(1 - "r"/100)^"n"`

18,225 = 25,000`(1 - "r"/100)^3`

`(1 - "r"/100)^3 = (18,225)/(25,000) = 729/1000 = (9/10)^3`

`(100 - "r")/100 = 9/10`

∴ 100 – r = 90

∴ r = 10%

∴ The rate of depreciation is 10% per annum.

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अध्याय 9: Commercial Mathematics - Exercise 9.4 [पृष्ठ १३२]

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बालभारती Mathematics and Statistics (Commerce) Part 2 [English] Standard 11 Maharashtra State Board
अध्याय 9 Commercial Mathematics
Exercise 9.4 | Q 6 | पृष्ठ १३२

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