A machine is depreciated in such a way that the value of the machine at the end of any year is 90% of the value at the beginning of the year. The cost of the machine was Rs. 12,000 and it was sold eventually at waste metal for Rs. 200, find out the number of years during which the machine was in use.
A machine is depreciated in such a way that the value of the machine at the end of any year is 90% of the value at the beginning of the year. The cost of the machine was Rs. 12,000 and it was sold eventually at waste metal for Rs. 200, find out the number of years during which the machine was in use.