The difference between the compound interest and the simple interest on ₹ $8000$ for $3$ years at $5 \%$ per annum is (In ₹)
$61$
$63$
$65$
None of these
An amount of money at compound interest grows up to $Rs. 3840$ in $4$ $years$ and up to $Rs. 3936$ in $5$ $years$. Find the rate of interest (In $\%$) ?
In how many years will ₹ $2,000$ yield ₹ $662$ as compound interest at $10 \%$ per Annum compounded annually?
If the ratio of $C.I. \& S.I.$ interest for the same principal and rate of interest for $2$ years is $1.2,$ find the rate of interest (In $\%$)
A man gave $50 \%$ of his savings of ₹ $84,100$ to his wife and divided the remaining sum among his two sons $A$ and $B$ of $15$ and $13$ years of age respectively. He divided it in such a way that each of his sons, when they attain the age of $18$ years, would receive the same amount at $5 \%$ compound interest per annum. The share of $B$ was (In ₹)
At what rate per cent compound interest does a sum of money become $16$ times in $4$ years?