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?
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.
A sum amounts to Rs. 4545 at the rate of 10% per annum in 5 years. In how many years will the same sum amount to three times the value of sum?
Annual increase in population of a city is 4% and the present population is 40000. What will be the population of the city after 2 years?
There is 60% increase in an amount in 6 years at simple interest. What will be the compound interest of Rs. 12000 after 4 years at the same rate?
