The value of a machine depreciates at the rate of $12$ $per$ $cent$ per annum. It was purchased $3$ $years$ ago. Its present value is $Rs. 29644.032$, what was the purchase price (In $Rs.$) of the machine?
$48700$
$43500$
$38900$
$39000$
Find the difference between $C.I. \& S.I.$ on $Rs. 15000$ at $3 \%$ per annum for $3$ years?
A certain sum of money (In $Rs.$) gives $Rs. 500$ at $5 \%$ S.I. for 1 year. What is the $C.I.$ at the same rate at the end of $2$ years?
Find the present (In ₹) worth of ₹ $9261$ due $3$ years, hence at $5 \%$ per annum compounded yearly.
The least number of complete years in which a sum of money put out at $20 \%$ compound interest will be more than doubled is
A sum of money at compound interest amounts in two years to Rs. $2809,$ and in three years to $Rs. 2977.54 .$ Find the rate of interest and the original sum.