The Length and breadth of the rectangular courtyard of the house of Amina are $6 \mathrm{m}$, and $4.2 \mathrm{m}$ respectively. We put a mattress of $3.5 \mathrm{m}\times 2.5 \mathrm{m}$ in the middle of the courtyard. Find the area of the courtyard without the mattress (in $\mathrm{sq}.\mathrm{m}$)?

 

There is a path of $3 \mathrm{m}$ width all around outside the square shaped park of Ajanta Housing Complex. The perimeter of the park including the path is $484 \mathrm{m}$. Calculate the area of the path(in $\mathrm{sq}.\mathrm{m}$).

The length and breadth of Mihir's rectangular garden is $50 \mathrm{m} \& 30 \mathrm{m}$ respectively. There is a road in the middle of the garden of width $4 \mathrm{m}$ parallel to the length of the garden. This road divides the garden into two rectangular regions of equal area. Find the area of the road (in $\mathrm{sq}.\mathrm{m}$).

The length and breadth of Mihir's rectangular garden is $50 \mathrm{m} \& 30 \mathrm{m}$ respectively. There is a road in the middle of the garden of width $4 \mathrm{m}$ parallel to the breadth of the garden. This road divides the garden into two rectangular regions of equal area. Find the area of the road (in $\mathrm{sq}.\mathrm{m}$).

My brother Dipu draws a picture on the entire rectangular sheet of paper whose length is $15 \mathrm{cm}$ and breadth is $8 \mathrm{cm}$. Calculate the change of the area of the paper in ${\mathrm{cm}}^2$ if the length is twice and the breadth is the same.

My brother Dipu draws a picture on the entire rectangular sheet of paper whose length is $15 \mathrm{cm}$ and breadth is $8 \mathrm{cm}$
Calculate the change of the area of the paper in ${\mathrm{cm}}^2$ if the breadth is twice and the length is the same.
 

My brother Dipu draws a picture on the entire rectangular sheet of paper whose length is $15 \mathrm{cm}$ and breadth is $8 \mathrm{cm}$
Find how many times the area of the paper will be to the area calculated in case if the length and breadth be twice.