The value of a machine depreciates at the rate of 10% per annum. If its present value is Rs. 1,62,000, what will be
its worth after 2 years ? what was the value of the machine 2 years ago ?
Value of the machine after 2 years.
= Rs.`[162000 xx (1 - 10/100)^2] = Rs. (162000 xx 9/10 xx 9/10)` = Rs. 131220
Value of the machine 2 years ago = Rs. `[(162000)/((1 - 10/100)^2)] = Rs. (162000 xx 10/9 xx 10/9)` = Rs. 200000.
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