Sonika invested an amount of ₹ $5800$ for $2$ years. At what rate of compound interest (In $\% p.a.$) will she get an amount of ₹ $594.50$ at the end of two years?

What is the difference between the compound interests (In  ₹ ) on ₹ $5000$ for $1 \frac{1}{2}$ years at $4 \%$ per annum compounded yearly end half-yearly?

Sita deposited $Rs. 5000$ at $10 \%$ simple interest for $2$ years. How much more money (In $Rs.$) will Sita have in her account at the end of $2$ years, if it is compounded semi-annually?

How many statements are useful for find this : 

What is the rate of interest percent $p.a.$?

$Statements:$

$I$. The difference between the compound interest and simple interest earned in two years on the amount invested is ₹ $100$.

$II$. The amount becomes ₹ $19,500$ in three years on simple interest.

$III$.The simple interest accrued in two years on the same amount at the same rate of interest is ₹ $3,000$.

On a certain sum of money, the simple interest for $2$ years is ₹ $200$ at the rate of $7 \%$ per annum. Find the difference in $C I$ and $S I .$ (In ₹)

A sum of money amounts to ₹ $6655$ at the rate of $10 \%$ compounded annually for $3$ years. The sum of money is (In ₹)