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
$625$
$630$
$640$
$650$
Find the compound interest on $Rs. 12500$ at $8 \%$ per annum for $9$ months compounded quarterly (In $Rs.$)
What will be the amount (In ₹) if a sum of ₹ $5000$ is placed at compound interest for $3$ years while rate of interest for the first, second and third years is $2,3$ and $4$ per cent, respectively?
The least number of complete years in which a sum of money put out at $20 \%$ compound interest will be more than doubled is
If $64000$ is deposited at $5 \%$ compound interest for a period of $18$ months, interest being compounded half-yearly, find the amount.
The $S.I.$ is $Rs. 7200$ on $12$ $p.c.p.a.$ for $6$ years on a sum. What is $C.I.$ (In $Rs.$) on $5$ $p.c.p.a$ for $2$ years?