At the end of each year, the value of a certain machine has depreciated by 20% of its value at the beginig of that year. If its initial value was Rs 1250, find the value at the end of 5 years.

A machinerty worth Rs.10,500 depreciated by 5% .Find its value after one year.

A TV was bought at a price of Rs 21,000. After one year the value of the TV was depreciated by 5% (Depreciation means reduction of value due to use and age of the item). Find the value of the TV after one year.

Rs.10,000 is invested at 5% interest rate p.a. Find the interest at the end of one year.

A manufacturer reckons that the value of a machine, which costs him Rs. 15625, will depreciate each year by 20%. Find the estimated value at the end of 5 years.

The population of a city was 20,000 in the year 1997. It increased at the rate of 5% p.a. Find the population at the end of the year 2000.

Rs.3,500 is given at 7% p.a. rate of interest. Find the interest which will be received at the end of two years.

Rs.6,050 is borrowed at 6.5% rate of interest p.a.. Find the interest and the amount to be paid at the end of 3 years.