The Value of a Machine Depreciates Every Year at the Rate of 10% on Its Value at the Beginning of that Year. If the Present Value of the Machine is Rs. 729, Its Worth Three Years Ago Was: - Mathematics

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MCQ

Choose the most appropriate option:

The value of a machine depreciates every year at the rate of 10% on its value at the beginning of that year. If the present value of the machine is Rs. 729, its worth three years ago was:

Options

  • Rs. 1000

  • Rs. 750.87

  • Rs. 800

  • Rs. 947.70

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Solution

Rs. 1000

Explanation:

Let the value of Machine 3 years ago = x

Depreciation rate = 10% pa

Present value = 729

`⇒"x"(1-10/100)^3=729`

x = ₹ 1000

Concept: Percentage, Discount and Partnership (Entrance Exam)
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2015-2016 (May) Set 1

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