Hello Siva,

It has been observed from the past years that you actually cannot predict the exact percentage of marks you'll be getting in your board exams.

The teachers are provided with the marking scheme of question paper on the basis of which they have to check the answer sheets.

So for example any particular question you might think you have done wrong and it must be there in the marking scheme that your question must be given some step marks so here you earn marks where you were not having any hope.

So you really can't predict but yes if you hope for 50% marks then you might achieve so or even more.

Hope your query is cleared.

Thanks!