Read the all old answer of the same question before approving the new answer
As 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
Question: http://www.techulator.com/experts/3034-Differences-between-Windows-OS-Android-OS.aspx
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.