A sum of money at compound interest amounts in two years to Rs. $2809,$ and in three years to $Rs. 2977.54 .$ Find the rate of interest and the original sum.
$4 \,\,\%,$ $Rs. 2500$
$6 \,\,\%$ $Rs. 1800$
$4 \,\,\%,$ $Rs. 1800$
$6 \,\,\%,$ $Rs. 2500$
Find the difference between $S.I.$ and $C.I.$ (In $Rs.$) at $14 \%$ for $2$ year on $Rs. 10000$
$B$ borrow ₹ $5,000$ from $A$ at $6 \%$ p.a. simple interest and lends it to $C$ at compound interest of $10 \%$ p.a. If $B$ collects the money back from $C$ after $2$ years and repays $A ,$ the profit made by $B$ in the transaction is (In ₹)
The compound interest (In ₹) on ₹ $6250$ at $12 \%$ per annum for $1$ year, compounded half-yearly 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?
The simple interest on a certain sum at $4 \%$ per annum for $2$ years is ₹ $80$. The compound interest (In ₹) on the same sum for the same period is