₹ $800$ at $5 \%$ per annum compound interest amount to $₹ 882$ in (In $years$)

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 $B$?

What will be the amount (In ₹) received on $25000$ at the rate of $20 \%$ per annum compounded yearly for $4$ years?

Which information given below is sufficient to know the amount if the difference between the $C.I. \& S.I.$ for $2$ years is $18$?

($I$) The rate is same at which an amount of $Rs. 1000$ become $1120$ for $2$ years in $S.I.$

($II$) The principal given is $Rs. 2000$.

The sum for $2$ years gives a compound interest of ₹ $3225$ at the rate of $15 \%$ per annum the amount is (In ₹) 

The compound interest (In ₹) on ₹ $10000$ at $20 \%$ per annum at the end of $1$ year $6$ months if the interest is calculated half-yearly will be