What sum will give ₹ $244$ as the difference between simple interest and compound interest (In ₹) at $10 \%$ in $1 \frac{1}{2}$ years compounded half-yearly?

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 $Rs.$).

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

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 ₹ $3,000$.

Amit invested an amount of $Rs. 25000$ in fixed deposit @ $C.I.$ $8 \%$ per annum for $2$ $years$. What amount (In $Rs.$) Amit will get

The difference between the compound interest and simple interest on a certain sum at $5 \%$ for $2$ years is ₹ $1.50$. The sum is (In ₹)