The compound interest (In ₹) on ₹ $800$ in $2 \frac{1}{2}$ years at $5 \%$ is

There is $60 \%$ increase in an amount in $6$ $years$ at simple interest. What will be the compound interest (In ₹) of ₹ $12000$ after $3$ years at the same rate?

A man borrows $Rs. 5100$ to be paid back with compound interest at the rate of $4 \%$ pa by the end of $2$ years in two equal yearly instalments. How much (In $Rs.$) will be each instalment?

The compound interest on a certain sum for $2$ years at $12 \%$ per annum, compounded annually is $Rs. 1272$. The simple interest (In $Rs.$) for that sum at the same rate and for the same period will be?

The simple interest accrued on an amount of $Rs. 20000$ at the end of $3$ years is $Rs. 7200$ . What would be the compound interest accrue on the same amount at the same rate in the same period?

Sonika invested an amount of ₹ $5800$ for $2$ years. At what rate of compound interest ($\%$ $per$ $annum$) will she get an amount of ₹ $594.5$ at the end of two years?