The compound interest on ₹ $4000$ for $4$ years at $10 \%$ per annum will be (In ₹)

A man borrows ₹ $3825$ to be paid back with compound interest at the rate of $4 \%$ per annum by the end of $2$ years into equal yearly instalments. How much will be each instalment (In ₹) ?

Aditya invested certain amount in two different schemes $A$ and $B$. Scheme $A$ offer $S.I$ @ $12$ $p.c.p.a.$ and scheme $B$ offer $C.I.$ @ $10$ $p.c.p.a.$ Interest accured on the amount invested in scheme $A$ in $2$  years was $Rs. 3600$ and the total amount invested was $Rs. 35000$. What was the interest accured on the amount (In $Rs.$) invested in scheme $B$?

Find the compound Interest on $Rs. 32000$ at $20 \%$ per annum for $1$ $year$, compounded half yearly (In $Rs.$)

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?

The compound interest on a certain sum for $2$ years at $10 \%$ per annum is ₹ $525 .$ The simple interest (In ₹) on the same sum for double the time at half the rate percent per annum is