The compound interest (in ₹) on ₹ $6250$ at $12 \%$ per annum for $1$ year,compounded half-yearly is

If the amount is $6 \frac{1}{4}$ times the principal after $2$ years at compound interest,the rate of interest (in $\%$) per annum is

What annual payment (in ₹) will discharge a debt of ₹ $1025$ due in $2$ years at the rate of $5 \%$ compound interest?

What sum will give ₹ $244$ as the difference between simple interest and compound interest at $10 \%$ per annum in $1 \frac{1}{2}$ years,compounded half-yearly?

If the difference between $S.I.$ and $C.I.$ for $2$ years on a sum of money lent at $5 \%$ per annum is $₹ 6$,then the sum is:

What would be the compound interest (in $Rs.$) accrued on an amount of $Rs. 7400$ at $13.5$ $p.c.p.a.$ at the end of $2$ years? (rounded off to two digits after decimal)