Laptop keys are not functioning properly

Hi,

I recently bought Dell Inspiron N5110. In this laptop, keyboard keys are not functioning properly. I checked the online dell support.  But those suggestions are not either relevant for my problem or even if I try those suggestions, the problem has not been resolved.

Problems are

 - when I press the back slash key, it's entering this symbol #

 - when I press shift and ' to get inverted commas, it is entering this symbol @

 - when I press shift and back slash, it's entering this symbol ~

 - when I press shift and 2 to get at the rate of symbol, it's entering this symbol "

 - when I press shift and 3 to get hash key, it's entering this symbol £

I don't understand how come in a prestigious company laptop, all these defects are existing. I bought this laptop just 2 months back.  From the beginning the functioning is like this.  Could you please help me.

Regards,

Sridhar