An amount of ₹ $8000$ was deposited at simple interest for $3$ years at $7.5$ $\%$ per annum. How much more would have gained (In ₹) had it been deposited at the same rate per cent compound interest?

What would be the $C.I.$ obtained on an amount of $Rs. 12000$ at the rate of $9 \,p.c.p.a$ for $3$ years (In $Rs.$) ?

Aditya invest $Rs. 50,000$ in a fixed deposit at $10 \%$ $C.I.$ for $2$ years. At the end of $2$ years she put the money in another deposit at $12 \%$ $S.I.$ for $3$ years. What was the final value (In $Rs.$)  of the initial Investment?

An amount of ₹ $12500$ is deposited for a period of $2$ years at an interest of $4 \%$ per annum. Find the difference between simple interest and compound interest (In ₹) $10$ for the deposit.

The difference between the simple interest on a certain sum at the rate of $10 \%$ per annum for $2$ years and compound interest which is compounded every $6$ months is ₹ $124.05$ . What is the principal (In ₹) ?

Find the difference (In $Rs.$) between $C.I. \& S.I.$ on $Rs. 13000$ at $4 \%$ per annum for $3$ years?