The value of a machine depreciates at the rate of 10% per annum. If its present value is Rs.40500, what will be its worth after 2 years? What was the value of the machine 2 years ago.
2 years later it will be 40500*(90/100)*(90/100) = 32805 2 years back it was 40500*(100/90)*(100/90) = 50000.
The value of a machine is Rs. 7000. It decreases by 10% during the first year, 15% during the second year and 20% during the third year. What will be the value of the machine after three years?
How much times (in years) will it take for an amount of Rs. 450 to yield Rs. 162 an interest at 4.5% per annum of simple interest?
