\"\"

\

The rectangle :

\

\"\"

\

Total area of the rectangle is \"\".

\

It is divided into \"\" equal parts with \"\" each.

\

The orange colour represents the shaded region of \"\".

\

The green colour represents the shaded region of \"\".

\

The total area of the shaded region is calculated by :

\

\"\"

\

\"\"

\

The correct choice is B.