Hi Sharath,
The best thing to do, with our book, or any other source you're using, is to copy and paste exactly what you're doing (and use the ubb code tags). Some people have found errors, and if that's the case we want to know what they are. A lot of times candidates think they've found errors in the book or in someone's mock exam and actually it's not an error. So, the only way we can help is if you show us exactly what's going on.
Thanks,
Bert