If the difference of the compound interest on a sum of money for $3$ years is ₹ $186 .$ Find the sum of money (In ₹) if the rate of interest in both cases be $10 \%$
$5500$
$7200$
$6500$
$6000$
The difference between the $S.I.$ and $C.I.$ obtained on principal amount at $5$ $p.c.p.a.$ after $2$ years is $Rs. 35 .$ What is principal amount (In $Rs.$).
Find the least number of complete years in which a sum of $Rs. 1500$ at $25 \%$ compound interest will be more than double.
Raghu invested a certain sum in Scheme $X$ for $4$ years.Scheme $X$ offers simple interest at $12$ per cent pa for the firsttwo years and compound interest (compounded annually) at $20$ per cent pa for the next two years. The total interest earned by him after $4$ years is ₹ $11016 .$ What was the sum (In ₹) invested by Raghu in Scheme $X ?$
Sonika invested an amount of ₹ $5800$ for $2$ years. At what rate of compound interest ($\%$ $per$ $annum$) will she get an amount of ₹ $594.5$ at the end of two years?
There is $40 \%$ increase in an amount in $8$ years at simple interest. What will be the compound interest. (in rupees) of ₹ $30000$ after $2$ years at the same rate?