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A manufacturer reckons that the value of a machine, which costs him Rs 15,625, will depreciate each year by 20%. Find the estimated value at the end of 5 years.

A. Rs 2000
B. Rs 3125
C. Rs 4000
D. Rs 5000

Answer :

Final answer:

The value of a machine after 5 years of depreciating at a rate of 20% per year is calculated by repeatedly reducing the initial cost by 20% each year. After performing these calculations, the estimated value of the machine at the end of 5 years is rounded to Rs 5,000.

Explanation:

The student in the question is asking how to calculate the value of a machine after 5 years of depreciation at a rate of 20% per annum. To solve this, we use the formula for depreciation which involves reducing the initial value of the machine by 20% each year.

The initial value of the machine is Rs 15,625. To find the value after one year, we calculate 20% of 15,625, which is Rs 3,125, and subtract that from the initial value. The value at the end of year 1 will be Rs 12,500 (15,625 - 3,125). We continue to reduce this new value by 20% each subsequent year for a total of 5 years.

  • Year 1: 15625 - (15625 * 0.20) = Rs 12,500
  • Year 2: 12500 - (12500 * 0.20) = Rs 10,000
  • Year 3: 10000 - (10000 * 0.20) = Rs 8,000
  • Year 4: 8000 - (8000 * 0.20) = Rs 6,400
  • Year 5: 6400 - (6400 * 0.20) = Rs 5,120

However, the estimated value is given in rounded hundreds, so we round Rs 5,120 to the nearest option which is Rs 5,000 (answer D).

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