Showing your workings in section C

Hi

It is mentioned in a few of your lectures that a candidate must show their workings in the exam.

now, if the student gets the answer wrong, they will be awarded credit for the good parts of their workings.
My question is, if the student only showed the final answer and got it correct, but did not show any workings at all, will they get the full marks available or will they lose credit for not showing their at all?
say if it is a part for 7 or 8 marks, is it possible to get the full marks for just stating the correct answer in one single line without showing the whole working?