Find the area of the shaded region.

A verandah of width $4.5\mathrm{m}$ is constructed along a room outside it. If the dimensions of the room are $18.5\mathrm{mX}14\mathrm{m}$, find:
 Area of the verandah and the cost of paving tiles in the verandah at the rate of $20$ per ${\mathrm{m}}^2$.

A rectangular field is $100\mathrm{m}$ long and $80\mathrm{m}$ wide. A path $10\mathrm{m}$ wide path is to be built inside the field all along its border. Find the area of the path.

There is a garden inside a $150$ $\mathrm{m}$ long and $100$ $\mathrm{m}$ wide rectangular park. A $20$ $\mathrm{m}$ wide path is built surrounding the garden along the boundary of the park. Find the area of the garden.

A square lawn is surrounded by a $5\mathrm{m}$ wide path. If the area of the path is $400{\mathrm{m}}^2$, find the area of the lawn.

A room is $20\mathrm{m}$ long and $15\mathrm{m}$ broad. It has to be carpeted after leaving a margin of $2\mathrm{m}$ all around it. Find the area of the carpet required and the cost of carpeting it at $₹800$ per ${\mathrm{m}}^2.$

A piece of cloth is $5\mathrm{m}$ long and $2\mathrm{m}$ wide. A border of width $50\mathrm{cm}$ has to be printed and stitched all around it on the outside. Find the cost of printing the border at $₹200$ per ${\mathrm{m}}^2$.

A rectangular lawn $100\mathrm{m}$ long and $70\mathrm{m}$ broad has two crossroads running in the middle of it$-$one $2\mathrm{m}$ wide running parallel to its length and the other $5\mathrm{m}$ wide running parallel to its breadth. Find the area of the lawn not covered by the crossroads.

A piece of cloth is $70\mathrm{cm}$ long and $50\mathrm{cm}$ wide. A strip of width $10\mathrm{cm}$ is cut from all around it. Find the area of the remaining cloth and the area of the strip.