A certain sum of money at compound interest grows up to ₹ $12960$ in $2$ years and up to ₹ $13176$ in $3$ years. Find the rate per cent per annum.
$1 \frac{1}{3}$
$2 \frac{1}{3}$
$1 \frac{2}{3}$
None of these
A sum put out at $4 \%$ compound interest payable half-yearly amounts to ₹ $6632.55$ in $1 \frac{1}{2}$ years. The sum (In ₹) is
The difference between the compound interest and the simple interest accrued on an amount of ₹ $18000$ in $2$ years was ₹ $405 .$ What was the rate of interest per cent per annum?
The difference between the simple interest and the compound interest (In ₹) on ₹ $600$ for $1$ year at $10 \%$ per annum, reckoned half-yearly is
If a sum of money placed at compound interest, compounded annually, doubles itself in $5$ years, then the same amount of money will be $8$ times of itself in (In $years$)
Sita deposited ₹ $5,000$ at 10\% simple interest for $2$ years. How much more money (In ₹) will Sita have in her account at the end of two years, if it is compounded semi-annually?