The floor of a hall measures \[20\,m\]by \[20\,m\]. A carpet is placed on the floor from wall to wall. What is the cost of the carpet if \[1\,{{m}^{2}}\] of costs \[Rs.\,50\]and for every \[1{{m}^{2}}\]of carper laid, \[\frac{1}{5}\,{{m}^{2}}\] of carpet material is wasted in cutting and laying?

• A.  \[Rs.\,25000\]
• B.  \[Rs.\,20000\]
• C.  \[Rs.16000\]               
• D.  \[Rs.12000\]