The volume of a hemisphere is $2425\frac{1}{2} {\mathrm{cm}}^3$. Find its curved surface area.

If the required answer is of the form $x {\mathrm{cm}}^2$, what is the value of $x$?

(Use $\mathrm{\pi }=\frac{22}{7}$)

If the required answer is of the form $x {\mathrm{cm}}^3$, what is the value of $x$? 

A $5 \mathrm{m}$-wide cloth is used to make a conical tent of base diameter $14 \mathrm{m}$ and height $24 \mathrm{m}$. Find the cost of cloth used at the rate of $₹25$ per metre.

If the required answer is $\mathrm{Rs} y$, then what is the value of $y$? (Use: $\mathrm{\pi }=\frac{22}{7}$)

If the required answer is of the form $x {\mathrm{cm}}^2$, what is the value of $x$?

If the answer is of the simplest form $\frac{a}{b}$, then what is the value of $a$? 

If the required answer is of the form $x \mathrm{km}$, what is the value of $x$?

If the required answer is of the form $x {\mathrm{m}}^3$, what is the value of $x$?

If the required answer is of the form $x {\mathrm{cm}}^2$, what is the value of $x$?

If the required answer is of the form $x \mathrm{m}$, what is the value of $x$?