The difference between simple and compound interest compounded annually on a certain sum of money for $2$ years at $4 \%$ per annum is $Rs. 1$ The sum (in $Rs.$) is

$A$ deposited $Rs. 6000$ in a bank at $5 \%$ per annum simple interest. $B$ deposited $Rs. 5000$ at $8 \%$ $p.a.$ compound interest. After $2$ years, the difference between their interests (In $Rs.$) will be

A bank offers $5 \%$ compound interest calculated on half-yearly basis. A customer deposits $Rs. 1600$ each on $1^{st}$ January and $1^{st}$ July of a year. At the end of the year, the amount (In $Rs.$) he would have gained by way of interest is

A certain sum of money invested at compound interest becomes $1.44$ times of itself in $2$ years. If twice this sum were lent at simple interest, in how many years would it double itself?

If the compound interest on a certain sum for $2$ years is ₹ $60.60$ and the simple interest is ₹ $60$, then the rate of interest per annum (In $\%$) is

In certain years a sum of money is doubled itself at $6 \frac{1}{4} \%$ simple interest per annum, then the required time (In $years$) will be