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a few years ago a man bought a computer for rs125000 . in the recent year he sold it for rs64000 at 20% per annual rate of depreciation . how long did he use the computer.​



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Answer:

Let's break this down step by step:

1. The man sold the computer for Rs 64,000.

2. The depreciation rate is 20% per annum.

3. To find the original price, we can set up an equation:

Selling Price = Original Price - (Original Price x Depreciation Rate x Number of Years)

Rs 64,000 = Rs 1,25,000 - (Rs 1,25,000 x 0.20 x Number of Years)

1. Simplify the equation:

Rs 64,000 = Rs 1,25,000 - Rs 25,000 x Number of Years

Rs 64,000 = Rs 1,00,000 - Rs 25,000 x Number of Years

1. Solve for Number of Years:

Number of Years = (Rs 1,00,000 - Rs 64,000) / Rs 25,000

Number of Years = Rs 36,000 / Rs 25,000

Number of Years = 1.44 years (approximately)

Since the depreciation rate is 20% per annum, we can assume the computer was used for approximately 1-2 years.

Step-by-step explanation:

Note: The calculation assumes a constant depreciation rate over the years. In reality, depreciation rates may vary, and this calculation serves as an estimate.

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