Hi Honh,

Marks will be awarded to everyone.

It's like that if A and B both solved that question and both reached the same answer but that answer is not given therein option. So, A just marked the answer which is nearly equal to his answer & B left that answer thinking that maybe there is some error in his calculations so better to leave the question. Now JEE committee don't know what A & B were thinking. So they will award marks to everyone. Also, there are few like C who just mark the answer randomly. :p 

Hope it was useful to you.

Feel free to contact us for any queries.

All the best :)

• If  questions are found wrong then it will be bonus