The difference between simple interest and compound interest compounded annually on a certain sum of money for $2$ years at $4 \%$ per annum is ₹ $1 .$ The sum (in ₹) is
$625$
$630$
$640$
$650$
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?
What will be $C.I.$ (In $Rs.$) on an amount of $Rs. 10000$ at the rate of $20$ $p.c.p.a.$ in two years if the interest rate is compounded half yearly?
What will be the compound interest (In ₹) on a sum of ₹ $50000$ after $4$ years at the rate of $10 \%$ per annum?
If the difference between $S.I.$ and $C.I.$ is $Rs. 25$ on $10000$ for $2$ years then what is rate of interest?
Find the least number of complete years in which a sum of $Rs. 1500$ at $25 \%$ compound interest will be more than double.