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The Value of a Machine Depreciates at the Rate of 10% per Annum. What Will Be Its Value 2 Years Hence, If the Present Value is Rs 100000? Also, Find the Total Depreciation During this Period.

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Question

The value of a machine depreciates at the rate of 10% per annum. What will be its value 2 years hence, if the present value is Rs 100000? Also, find the total depreciation during this period.

Sum
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Solution

Value of the machine after two years = P \[\left( 1 - \frac{R}{100} \right)^n \]
\[ \Rightarrow 100, 000 \left( 1 - \frac{10}{100} \right)^2 \]
\[ = 100, 000 \left( 0 . 90 \right)^2 \]
\[ = 81, 000\]
Thus, the value of the machine after two years will be Rs 81, 000.
Depreciation = Rs 100, 000 - Rs 81, 000
 = Rs 19, 000

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Chapter 14: Compound Interest - Exercise 14.5 [Page 31]

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RD Sharma Mathematics [English] Class 8
Chapter 14 Compound Interest
Exercise 14.5 | Q 2 | Page 31

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