Read the all old answer of the same question before approving the new answerAs recently today contacted in forum about mistakes in post in answer, tony john said i can help to find out and report such errors.
so here this one follow the link
Answer by the author "Kartik"(post is priced with Rs. 10), The same answers is 99% copied and pasted by author "kishu raj" it is amazing he got 5 Rs for the same answer.
May this one can helps you to save your valuable money Rs.5.
I'm happy to help you to find such errors.