If the compound interest on a certain sum for $2$ years is ₹ $60.60$ and the simple interest is ₹ $60$, then the rate of interest per annum (In $\%$) is

What would would be the $C.I.$ obtained on an amount of $Rs. 4800$ at the rate of $5$ $p.c.p.a$ for $3$ years (In $Rs.$)?

In year $2008,5000$ students were admitted in a college. It is found that the number of students admitted is constantly increasing by $24$ per cent per year. How many students will be admitted in the college in the year $2010 ?$

The compound interest accrued on an amount at the end of $3$ $years$ $@$ $15$ $p.c.p.a.$ is $Rs. 6500.52 .$ What is the amount (In $Rs.$) ?

Difference between simple interest and compound interest on a certain sum for $3$ years at $5 \%$ per annum is ₹ $122 .$ Find the sum (In ₹ )

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 $X ?$