Hii

Answering your question, first you should have mentioned if it was your regular school exam or boards exam. If it was your school exam, then you can talk to your teacher and you can be given marks. But if it was your boards exam then it totally depends on the person who is going to evaluate your paper. If the person is considerate, he or she may give you marks but if not so you may loose marks in those particular questions. Just hope for the best.