How many rectangles, with sides as natural numbers, can be drawn with 38 cm as perimeter? Also, find the dimensions of the rectangle whose area will be maximum.

 The length of a rectangular wooden board is thrice the width. If the width of the board is 12 cm, then find the cost of framing it at the rate of 5 per 20 cm.

The perimeter of a rectangular field is $120 m$. If its length is $35 m$, find its width. Also, determine the cost of levelling the ground at the rate of $₹35 per m^2$.

The area of a square field is $81 m^2$. Find the cost of fencing the field with a wire at the rate of $₹2.25 per m$.

A wire in the shape of a square of side $8 cm$, is bent to form of a rectangle of length $10 cm$. Determine the breadth of the rectangle.

A wire in the shape of a square of side $8 cm$, is bent to form of a rectangle of length $10 cm$. Determine the breadth of the rectangle.Out of the square and rectangle, which encloses more area?

The length and breadth of the wall of a room is $8 \mathrm{m} \mathrm{and} 600 \mathrm{cm}$ respectively. A poster of a square shape of sides $5 \mathrm{dm}$ is pasted on the wall. Determine the area of the part of the wall which is covered by the poster.

If a floor of length $18 \mathrm{m} 12 \mathrm{cm}$ and breadth $15 \mathrm{m} 60 \mathrm{cm}$ is to be covered with six carpets with each of sides $2 \mathrm{m} 20 \mathrm{cm}$, then determine the area of the remaining part of the floor.