The population of a city increases each year by 4% of what it had been at the beginning of each year. If its present population is 6760000, find :

(i) its population 2 years hence

(ii) its population 2 years ago.

The cost of a refrigerator is ₹9000. Its value depreciates at the rate of 5% every year. Find the total depreciation in its value at the end of 2 years.

A farmer increases his output of wheat in his farm every year by 8%. This year he produced 2187 quintals of wheat. What was the yearly produce of wheat two years ago?

The value of a property decreases every year at the rate of 5%. If its present value is ₹411540, what was its value three years ago?