M L Aggarwal Solutions for Exercise 3: EXERCISE 2.3

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

Ahmed purchased an old scooter for $Rs 16000$. If the cost of the scooter after $2$ years depreciates to $Rs 14440$, find the rate of depreciation.

A factory increased its production of cars from $80000$ in the year $2011-2012$ to $92610$ in $2014-2015$. Find the annual rate of growth of production of cars.

The value of a machine worth $Rs 500000$ is depreciating at the rate of $10\%$ every year.In how many years will its value be reduced to $Rs 364500$?

Afzal purchased an old motorbike for $Rs 16000$. If the value of the motorbike after $2$ years is $Rs 14440$, find the rate of depreciation.

Mahindra set up a factory by investing $Rs 2500000$. During the first two years, his profits were $5\%$ and $10\%$ respectively. If each year the profit was on previous year’s capital, calculate his total profit.

The value of a property is increasing at the rate of $25\%$ every year. By what percent will the value of the property increase after $3$ years?

Mr. Durani bought a plot of land for $Rs 180000$ and a car for $Rs 320000$ at the same time.The value of the plot of land grows uniformly at the rate of $30\%$ p.a., while the value of the car depreciates by $20\%$ in the first year and by $15\%$ p.a. thereafter. If he sells the plot of land as well as the car after $3$ years, what will be his profit or Loss?