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.

In a lab experiment, a culture has 5,00,000 bacteria. The count increases at 2% per hour. How many bacteria will there be after 2 hours?

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.