The population of a state increases by $10 \%$ every year. If its population in the year $2003$ was $15$ lakhs, what was its population in the year $2005$ (in $lakhs$)?
$16.5$
$15.5$
$17.25$
$18.15$
The compound interest on a certain sum for $2$ years at $12 \%$ per annum, compounded annually is $Rs. 1272$. The simple interest (In $Rs.$) for that sum at the same rate and for the same period will be?
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?
The difference between the simple interest and the compound interest (In ₹) on ₹ $600$ for $1$ year at $10 \%$ per annum, reckoned half-yearly is
The difference between the compound interest and simple interest on a certain sum at $3 \%$ per annum for $3$ years is ₹ $27.27 .$ The sum is (In ₹)
Find the ratio of $S.I. \& C.I.$ on a certain sum of money at $5 \%$ per annum for $2$ years