Question

If a machine worth ₹P depreciates at R% per annum, its value after n years is P\left(1 + \frac{R}{100}\right)^n.

A printing machine costs ₹60,000. Its value depreciates at 15% per annum. Find its value (in ₹) after 2 years.

The present population of a town is 1,35,200. It has been increasing at 4% per annum. What was the population of the town 2 years ago?

The bar graph shows the value of Anil's scooter when he bought it and after 1 and 2 years. The value falls at the same rate every year. Find the rate of depreciation, and then the value of the scooter (in ₹) after 3 years.