The difference between the compound and simple interest on a sum of money for $2$ years at $6 \frac{1}{4} \%$ per annum is $Rs.$ $10$. The sum (In $Rs.$) is
$2000$
$2200$
$2560$
$2600$
The $C.I.$ on $Rs. 10000$ at $20 \%$ per annum at the end of $1$ year $6$ month, if the interest is calculated half yearly will be
Find the difference (In $Rs.$) between $C.I. \& S.I.$ on $Rs. 13000$ at $4 \%$ per annum for $3$ years?
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 $Rs.$) ?
A sum of $Rs. 8448$ is to be divided between $X$ and $Y$ who are respectively $18$ and $19 \,yr$ old, in such a way that if their shares be invested at $6.25 \%$ per annum at compound interest, they will receive equal amounts on attaining the age of $21 \,yr$. The present share of $X$ is (In $Rs.$)
A tree increases annually by $\frac{1}{8}$ of its height. By how much will it increase (In $cm$) after $2$ years, if it stands today $64 cm$ high?