A sum of money at compound interest amounts to thrice itself in $3$ years. In how many years will it be $9$ times itself?
$9$
$27$
$6$
$3$
If a sum of money at compound interest amounts to thrice itself in $3$ years, then in how many years will it be $9$ times itself?
If the simple interest on a sum of money for $2$ years at $5 \%$ per annum is ₹ $50,$ what is the compound interest (In ₹) on the same sume at the same rate and for the same time?
Sita deposited ₹ $5,000$ at 10\% simple interest for $2$ years. How much more money (In ₹) will Sita have in her account at the end of two years, if it is compounded semi-annually?
What is $C.I.$ (In $Rs.$) on $Rs. 7500$ for $4$ years if the rate of interest is $10 \%$ p.a. for the first $2$ year and $20 \%$ $p.a.$ for the next $2$ year?
The compound interest (In ₹) on ₹ $12000$ for $9$ months at $20 \%$ per annum, interest being compounded quarterly, is