The principal that amounts to ₹ $4913$ in $3$ years at $6 \frac{1}{4} \%$ per annum compound interest compounded annually (In ₹) is.

A sum of money lent at compound interest amounts to ₹ $1460$ in $2$ years and to ₹ $1606$ in $3$ years. The rate of interest (In $\%$) per annum is 

The production of a factory grows at a $8 \%$ $p.a.$ What will be its production (In $lakh tonnes$) for the year $2010$ , if its production in $2008$ was $70$ lakh tonnes?

If the compound interest on a sum for $2$ years at $12 \frac{1}{2} \%$ per cent is ₹ $510$, the simple interest (In ₹) on the same sum at the same rate for same period of time is

Monica deposited a total of $Rs. 10500$ with a bank in two different deposit schemes at $10 \%$ $p.a.$, interest being compounded annually. As per the schemes, she gets the same amount after $2 \,years$ on the first deposit as she gets after $3 \,years$ on the second deposit. How much money (In $Rs.$) did she deposit for $3 \,years$?

If the compound interest on a certain sum of money for $3$ years at $5 \,%$ p.a. is $Rs. 504.40$ , find the corresponding simple interest. (In $Rs.$)