The compound interest on ₹ $30000$ at $7 \%$ per annum is ₹ $4347$ . The period (in $years$) is
$2$
$2.5$
$3$
$4$
Find the least number of complete years in which a sum of $Rs. 1500$ at $25 \%$ compound interest will be more than double.
Aditya invest $Rs. 50,000$ in a fixed deposit at $10 \%$ $C.I.$ for $2$ years. At the end of $2$ years she put the money in another deposit at $12 \%$ $S.I.$ for $3$ years. What was the final value (In $Rs.$) of the initial Investment?
There is $60 \%$ increase in an amount in $6$ years at simple interest. What will be the compound interest (In $Rs.$) of $Rs. 12,000$ after $3$ years at the same rate?
How many statements are useful for find this :
What is the rate of interest percent $p.a.$?
$Statements:$
$I$. The difference between the compound interest and simple interest earned in two years on the amount invested is ₹ $100$.
$II$. The amount becomes ₹ $19,500$ in three years on simple interest.
$III$.The simple interest accrued in two years on the same amount at the same rate of interest is ₹ $3,000$.
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?