Basics of Finan...

An emergency lamp costs Rs. 1100. Every year, its value depreciates by 10%. What is its value at the end of 3 years?

Mr. Mittal finds that an increase in the rate of interest from $$4 \displaystyle  \dfrac{7}{8}\%$$ to $$5 \displaystyle \dfrac{1}{8}\%$$ per annum increases his yearly income by Rs. $$250$$. His investment is

Rakesh took a loan for $$7$$ years at the rate of $$6\%$$ p.a. $$S.I$$. If the total interest paid was Rs. $$2100$$, the principal was

Depreciation refers to 

X, Y and Z are the three sums of money. X is the simple interest on Y, and Y is the simple interest on Z. The rate percent per year and the time in years being the same in each case. Which one of the following relations in X, Y, Z is correct?

If the annual decrease in the population of a town by $$5\%$$ and the present population be $$68590$$, what was the population three years ago?

A sum of money at compound interest is doubled in $$20$$ years. Then the number of years required to tripple itself are

Find the compound interest on Rs 1,200 for 2 years at 10% per annum

Rajan borrowed Rs. $$5000$$ from Rakesh at simple interest. After $$3$$ years, Rakesh got Rs. $$300$$ more than what he had given to Rajan. What was the rate of interest per annum?

Find the rate, when $$Rs.\ 1800$$ earns an interest of $$Rs.\ 432$$ in $$3$$ years